I'm looking for an SQL server solution that runs on XP for testing purposes. I know MS makes a free one but I can't get it to install and I frankly have a bias against MS when it comes to mission critical programs. I've just been let down too many times by programs with too many entanglements into the OS. MS seems to feel that because they know the OS backwards and forwards that they should then entangle any app into the OS's deep settings. Anyway, I'm looking for pretty much anything. It can cost money as I'm happy to play with a demo for awhile.