Agreed, that clcl looks suspicious. I'd yank that. It might be some kind of clipboard related thing, but I couldn't really find info on it. Likewise, "Registry Monitor" with an executable named "1903cr.exe" looks mighty suspicious too.
The AIM6 line looks weird because it doesn't seem to do anything. I'd pull that on general principal.
You've got a lot of junk that's safe to turn off: Real Player, quicktime, AOL stuff, Winzip, MSMGS (messenger) and Yahoo Messenger. Adobe Reader's startup agent actually makes it fast enough to be useful, so I'd leave that. If there are any that you don't use, turn them off.