Name this raid! The convention is to pick your favorite liquor (this IS the Drunken Badgers). Reserved names include Whiskey, Vodka, and Brandy. Other than that, pick your poison. Suggesion: Schnapps. "That boss was pwned, O Schnapps!" "Your puns are terrible! Schnapps it!"
Pick your raid times! If you have interest in the Australian contigent of DB, 6:00pm on weekends is the standard compromise. If your personal schedules are unable to be Aussie-friendly, make sure they know that in Oz before they get excited. Feel free to run at the same time as Whiskey (6-11pm Fridays), but keep in mind that you won't be able to draw on Whiskey raid member's alts for subs. That's not necessarily a bad thing. I would really like for all the folks in the guild who aren't in Whiskey to have an in-guild raiding option.
I'd advise strongly against using the alts of Whiskey raid members as regulars in your raid. We make great subs in that we are seasoned raiders - we tend to be geared, know our class, know the instance, and are communicative about our availability. However, we reach burnout much more swiftly, and your raid will likely be second priority. You probably won't want us as regulars. Over-reliance on Whiskey raid member's alts was a major failing of a previous raid, and I'd hate to see that repeated here.
Set the tone of your raid. Whiskey is hardcore, but it's been around for a long long time and can afford to be very picky. Starting raids do not have that luxury- and you may not even *want* to be hardcore. For starters, I'd suggest requiring Vent (no mic), DBM, PallyPower for paladins, full enchants (but not the most expensive ones, and perhaps make shoulders optional), rare-quality gems (epic gems optional), flasks, and ilevel 200 epics. These are all pretty easy and relatively cheap to come by, and anyone who does not meet these requirements will likely be unable to make a significant contribution in an Ulduar 10. The upside is that the guild is full of folks who already meet this bar, folks who almost meet this bar, and folks who are willing to help.
Raid Ninja is a useful tool for managing signups. It's largest strength is its ability to differentiate between "Regulars" (who will have a spot every week they sign up), and "Subs" (who may not have a spot, even if they sign up, if all the regulars can make it). This difference is most important in a 25 person raid, which often need at least one sub every week. However, it's still pretty handy for 10 person raids. The downside of RN is that it requires some annoying setup- but once established it needs little maintenance. If you would like to use Raid Ninja, please let me know and I will show you how.
Suicide Kings is the loot system that the Whiskey raid uses. It's esentially the system you used in your previous 10 person raid, only abstracted over several raids. That is, it's basically open roll among regulars, with priority given to those who have recieved an upgrade least recently (though there are some nuances). It also handles "Need" and "Greed" rolls for offsets at the same time as bidding, thereby speeding up loot tremendously. Zoble has the mod that keeps track of all of this. In my experience, it is an extreme pain in the ass to run this mod as it is buggy and no longer supported by the creators. However, it does work and I am unaware of any other loot mods that work better. In my experience, 25 person raids that do not use some sort of DKP-like system lose the interest of their regulars much more easily. 10 mans experience this to a lesser extent, but it's still there. However, it's not even necessary to use a mod. Open rolls are fine, too.
You will have the full support of the guild leadership in your raid, and you can expect additional support from the Whiskey leadership. If you have any questions, need any help, want to bounce around ideas, or simply want a shoulder to cry on when things get frustrating- we are here for you. Please make use of us as a resource. Guild officers include Mogri, Rhaeyn, Cliffton, Chiaroscoro, Jezrael, Emelin, Cerheal, Zoble. Whiskey officers include: Judrog, Revpardoctor, Halexx/Malizz, Chia, Jezrael, Zoble. There may be more folks I forgot to list