Quote -
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Processor - AMD or Intel?
Bit - 32 or 64?
Hyperthreading - Yes or no?
Hard Drive - regular or RAID?
Video Card - whats the best for 3D/Video editing?
RAM - Whats the best type of RAM?
Bus Speeds - ???
Are there any Pre-Built systems that are excellent?
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there are alot of other things I know I am forgetting as well.. Please let me know what to look for..

Thanks in advance! I hope to add some of my own content to renderosity soon!

Hello and welcome, these are my views on it:-

AMD, dual core or the skt 939 Opterons (won't be hyperthreading)

64 Bit

Raid - has various flavours - Striping - splits data between drives giving better performance, Mirroring - duplicates data so that you have a back up if a drive fails - at the top level you can stripe and mirror - but you need more drives. If you're serious about your editing it's worth going with a striped and mirrored array of 4 drives.

Video Card - I like the Quattro cards by nvidia - but there are plenty out there - I also have an older machien running a Radeon 9700 and it is more then capable of driving two monitors and good editing with my preferred package Adobe premier.

If you're going with current AMD look at high spec DDR, such as corsairs twinx on a motherboard that supports dual channel ram (nForce4 chip set use the biggest pair of sticks you can afford...) bus speed would be quoted as 400M, but is physically 200.

For off the shelf, there are plenty of good companies, I can recomend Scan (www.scan.co.uk), Aria (www.aria.co.uk) and evesham (www.evesham.co.uk) I've bought from all of them and been pleased. Consider Boxx expensive but top notch graphics editing experts - they build awesome machines.

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Toolset: Blender, GIMP, Indigo Render, LuxRender, TopMod, Knotplot, Ivy Gen, Plant Studio.