LIBERTY IS THE BEST ROM AROUND!!! (In my opinion)
There are however many Droid 2 Roms to choose from!
Check out Liberty here:
[ROM] The Eagle Has Landed!!!! - Liberty 1.0 1/11/11 - Droid Forum - Verizon Droid & the Motorola Droid Forum
If you don't know how to root your Droid 2 then then you'll need this:
Much simpler guide for rooting (no pc required) - Droid Forum - Verizon Droid & the Motorola Droid Forum
(You'll need these files: MEGAUPLOAD - The leading online storage and file delivery service Just unzip them to the root of your SDCARD)
Alternitively you can use the z4root method if you want something REALLY easy:
Unzip that file and install the .apk and it does the rest for you!
If you need a free version of Droid2Bootstrap.apk you can get it here: http://koush.tandtgaming.com//motoro...2Bootstrap.apk
Although I will recommend you get it from the market and support Koush for all of his hard work!!!
Other than that enjoy your Droid 2 and feel free to ask me any questions!