Help me build a new rig!

[jiffy007]

Hi all,

So, it's been awhile since I've put a system together, and even then it was a fairly basic machine.
I'm looking to build a video editing/audio production rig (I know, the two don't exactly go hand-in-hand together), but am not up-to-date with all of the most recent developments in hardware, and lack the requisite technical knowledge to achieve more advanced functionality, such as overclocking the components and integrating a sophisticated cooling system.

Any and all tips, advice, assistance, etc. would be greatly appreciated!
Here's what I'm working with so far (I should note that I'm on a fairly tight budget, so any referrals to good deals on recommended components would be doubly awesome):

Case:
Antec Solo Mid Tower Case
or
Ultra Wizard Mid Tower Case

Power Supply:
Ultra V Series 500W Power Supply

Motherboard:
BIOSTAR TForce965PT LGA 775 Intel P965 Express ATX

Processor:
Intel Core 2 Duo E6300 Conroe 1.86GHz 2M shared L2 Cache LGA 775

Memory:
Kingston 1GB 240-Pin DDR2 SDRAM DDR2 667 (PC2 5300) (x2)

Sound Card:
Diamond Xtreme Sound 7.1 24 Bit Dolby EX Sound Card - XS71
and
Creative E-MU 0404

Obviously, I've got a long way to go...help!!!