Just playing around with a new setup and I came up with something, wondering if it a good idea. I've got 200G to work with and I want to triple boot XP and two Linux distros.

Primary partition: 30G FAT32 for windows
Extended partition: 20G for / and /home
Logical Part 1: 8G for first Linux /
Logical Part 2: 2G for /home (only going to be saving config files)
Logical Part 3: 8G for second Linux /
Logical Part 4: 2G for /home
Primary partition: 2G for linux swap
Primary partition: 135G to store data that can be shared between both linux distros.

Do you think this will work?

That should work just fine, though it may be more swap than you really need. It depends on how much RAM you have, and what you do a lot of on the computer.

If RAM is 1 gig or more, you can probably get by just fine with 512 meg of swap.