Couple of tools that Erik Stark commented about. You should already have something like browsershots in your arsenal of testing supplies, but if you don’t hit it up. Just drop in your URL and wait a few minutes to get your screenshots in a bunch of different browsers. Much easier than keeping an army of outdated software on the system.

Also, untested by me, but a cool idea. VectorMagic. Erik says it is pretty cool so if your in a major time crunch and don’t want to re-do a raster you have saved, just drop it in this and see what you get.