Quote from sim03:
gnome, what you want is a "startup manager" that also handles processes. One of the many freeware and shareware programs in the "process management" category of MajorGeeks should be just the ticket for you:
http://www.majorgeeks.com/download.php?id=40
Others to consider:
PC Mag's granddaddy of them all, Startup Cop - original, Pro (both free) and Pro 2 ($7.97, but easily found elsewhere online free, Google the .zip file name). Pro and Pro 2 let you create and save profiles, a nice feature.
CodeStuff Starter - freeware, haven't used it, but seems highly rated.