First-year resident here....took COMLEX 3 about 2 months ago...passed.....I used Combank (good mainly because it gets you used to the format), Savarese (crucial....esp Chapter 10 in the third edition), First Aid for Step 3 (read it once), and the green Secrets to Step 2 book (a few of the chapters, esp. the high-yield chapter at the end).
The test was not hard. Sure, there were some questions from left field, but also there were a lot of very fair questions. I had about 10 EKGs, no peripheral smears, oh, and a whole section where I listened to heart murmurs (took that section like a man).
In general, I studied for this test in a very similar fashion to how I prepared for Step 2, but didn't put as many hours into it...You'll find that you can fall back on your experience for a lot of questions....good luck.