Hello all, I am currently running a machine with Windows Vista Home Premium 32 bit but I think I wish to dual boot my system between windows vista and linux.
My two questions are:
1) Which distro would be best for me? I am fairly experienced with computers, and I don't want "too" easy of a transition from windows. I was thinking Fedora but I don't know that's just a guess.
2) I currently have 1 hdd of 750 gb. How much space would I have to have to free onto a partition to run linux?

1) Really, I'd suggest trying a few and seeing what works well for you. Many LiveCDs are available, make use of them. Ultimately it depends on how much you want in terms of a learning curve, as Fedora isn't that hard to use (but honestly, it a great place to start to see if you want a bit more of a bare-metal experience, so to speak). If you want something that comes with great tools but requires some new skills and doesn't necessarily hold your hand, you may want to try Debian, it's still my choice for secure servers and the like.

2) I'd suggest with a disk of that size giving at least 50 GB. You won't miss it and it will give plenty of growing room. You may want to consider a FAT32/NTFS/EXT3 "bridge" partition as part of your disk plan, something that will allow access to data across OS's without having one OS muck about in the other OS's partition (for cleanliness), and if you decide to do so, you can shrink the Linux partition(s) to 10-15 GB total, still allowing plenty of room to install new apps.

My $.02

thank you very much for the advice!

1. My suggestion for a new linux user would be ubuntu/kubuntu (depending if you prefer gnome or kde, have a look at screenshots of both) as IMO it's a brilliant distro for learning linux, easy to use and plenty of support available. Also once you get to grips with linux theirs plenty of more advanced things you can do with ubuntu so you wont "outgrow" it so to speak.
2. I'd reccomend having a seperate / (root, where the OS installs) and /home (the equivelant of my documents) partitions as that way if you have any problems and need to reinstall you wont lose your documents and also it makes changing to a new distribution and keeping your documents a lot easier. If you were going to give linux a total of 50GB then I'd suggest 10GB max for / you'll need a swap partition (acts like extra ram, so if you have a lot you wont need a bit partition for it) and then the rest of the space for your /home partition.

Also theres no need for a FAT32 partition as linux has perfect read/write support for NTFS and you can install drivers on windows to provide read/write for ext3.