There is no reason NOT to get a 64-bit capable PC at present. Most high-end desktop processors are enabled for 64-bit. Both AMD and Intel processors, in the higher models, have the capability.
Windows 64-bit will give no improvement for existing, 32-bit games. But it will give no appreciable performance drop either. See this discussion from Sharkey Extreme for an example:
http://www.sharkeyextreme.com/hardwa...61_3484631__10
Specialised software tasks, such as the video editing you mention, will most certainly get a boost from 64-bit computing, but only when suitable software becomes available. For now, using 32-bit Windows is fine. Pick the processor and system for performance, and performance is what you'll get.
If games is your priority, then the best single core Athlon64 processor you can afford is the wisest choice you could make to base a system on, and it can currently be happily partnered by 32-bit Windows.
If the applications processing is your priority, it might be better to wait a bit until the Athlon64 X2 dual-core processors reach retail (if you can afford one) as they will give a dramatic improvement with suitably written software. There is currently no processor 'type' or 'niche' for which Intel holds the performance lead over AMD.
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i have just read more information on microsofts website and i think the information that comes direct from the os vendor is more likely to be right then some third party info. 32bit apps will run on 64bit systems but there wont be any performance difference in them.
