I've been trying to find a good system to use for editing my HD video using sony vegas. The techs tell me that my cheapo model from futershop is maxed out at only 2GB of ram. I thought I could take out the two 1GBs and replace with a couple 2GBs but I was told that the system doesn't have enough power and that installing a better processor and graphics card would be a waste of time due to all th limitations on this machine. Any ideas on what I can build or pick up that wont break the bank. I don't need fancy, ie little blue lights glowing in the background, I just need it to play and edit HD video smoothly and efficiently. Thanks for any help you can offer.