Passed ICND2 today about 6 weeks after taking the ICND1. Passed with a 945. Found the exam was pretty difficult, significantly more so than ICND1. As Chris Bryant says, "Know this stuff COLD!".

Heres some of the stuff I used to study:
Trainsignal-ICND2--Used CBTNugs for ICND1, and found Trainsignal to be much better (depends on the person though).
Lammle-CCNA Fast Pass
Routers and Switches at work--Catalyst 3560's, and 4503 layer 3 switch, 2801, and 3845
Boson Simulator
Subnettingquestions.com
CCNA command quick reference quide (GREAT!)
TechExams.net forums
Thanks guys for all the great posts, and quick responses to all questions. On to the BSCI for me!