Thank you very much for the help so far.
A few more questions came up as I've been reading all over the internet and asking fellow computer-knowledgable people about 64 bit (sadly very few people know much about it, but 2 of my gamer friends say its 100% good).
1: What is compatibility/emulation mode? I read that you can emulate a 32 bit OS and run certain programs that normally wouldn't run, ala Bootcamp with a Mac. Does this take extra resources/does it require a reboot? How does it work exactly?
2: As far as parts go, do they have to say 64 bit compatible to work, or just have drivers available and they're good? I'm building a good gaming computer with quality parts, so I'm pretty much in the clear with 64 bit support, right? To make sure, all I need to do is check that drivers exist for my stuff.
3: Speaking of drivers, my co-worker said that Vista installs drivers quite well by itself when it installs, but then you should go get the better drivers for things such as Graphics Card and Sound Card. Would I need to get drivers for my network card and other things like, or would the default ones be fine?
4: As far as overclocking goes, it is easier/harder/different from 32 bit to 64 bit?
5: I read that 16-bit programs won't work. What is exactly considered a 16 bit program?
6: These are the programs that I'll be using for the most part. If anyone knows if any of these work on 64 bit Vista, please tell me so I don't have to check each individual one.
-uTorrent (or a good torrent program)
-All the Adobe stuff (Illustrator, Photoshop etc.) Does it need to be CS3 or is CS2 okay?
-Audacity
-Nero
-DivX Codec
-Blackberry Software
-Palm Software
-Lexmark x1185
-Zone Alarm
-Slickrun
-Rocket Dock
-Firefox and its extensions
-Foxit Reader
-Fraps
-HiJack This
-iPod Peripherals (iTunes, drivers)
-Nintendo WiFi USB Adapter Software/Driver
-PowerIso
-DAEMON Tools
-Logitech Setpoint
-Pidgin
-Real Alternative
-Media Player Classic
-Winamp
-Soulseek
-The Rosetta Stone
-Winrar
If anyone can answer any of these - much appreciated!