HELP IS NEEDED.

ok here's my dillema I need to know what windows os I need for leopard bootcamp, I wan't windows on my mac
, but don't know of which win disc to get and where, I would like to use xp or vista. but I've noticed each series of xp vista home, premium etc. all have limitation. my dilema that has come to me to contact you is that I own a jvc everio gz-mg155 30gb usb hard drive camcorder that saves files in .VOB files and I can't get the files off the camcorder to my mac. so I want to run windows so that I can install the windows only software from the everio in windows seamlessly and be able to get the files off the camcorder into that windows only everio software that creates movies from my files. but Im confused on all the win os versions of software ie upgrades, which I dont want, I want the "non upgrade" full windows os disc, that is capable of letting me install the everio software to get my files off. can you help me out. it is greatly appreciated. A CHEAP PRICE on win os IS ALSO APPRECIATED. IM LOOSING MY MIND. IM JUST A NEWB.