Close to finished!

I got everything for the computer working, got a new graphics card, hard drive and everything physical works. Now I need software, IE OSes. Screw Winblows. It's REALLY ANNOYING with Linux so far, because the MBR couldn't be overwritten, had to be first partition, whatever I'm done. I'm installing (so far) Ubuntu, and Slamd64 which is a 64-bit unofficial port of Slackware. Installed both of them with 100 gig partitions (logical) with a 100 gigs unallocated first partition in case I want Windows, and a 2 gig last partition for FreeDOS which I still need to install. I have 20 gigs (logical) for whatever else (I'm thinking PClinuxOS) and 300 gigs (logical) for data. Installed OpenArena on Slamd64 and haven't reboot into Ubuntu or ANYTHING yet.