Captain America and Iron Man

I have found that I love all of the Avengers characters far too much to wait for a film to come out that may or may not live up to the rainbows and frolicking happening in my head....are there any readers of the comics on my flist? I'd love to start reading them but don't quite know where to start with either. I only ever read X-Men back in the day--but all incarnations of X-Men, so it was a full time gig--so I don't really know about the rest. Any suggestions?