Oops, sorry Digitell, I see I left out the link.

The web site I saw is  www.velocitymicro.com/index.php who actually seem to be in Virginia.
Under their 'Systems" tab you can choose "Gaming" PCs,
or "Digital Media" PCs, which is perhaps the type of PC Build you have been looking for.

I have never built my own PC.  I do NOT recommend it, if you have never seen it done before.
Best to learn how by uprading old PCs by replacing motherboards and/or adding memory to them.  Figuring out what board goes where can be like a nightmare from IKEA as there is little or no labeling on them.
Some main gotchas are:
(i) Remembering to earth yourself to the PC via a cable with a clip attached to the PC case at one end and your wrist at the other.  [ We usually build up static electricity on our body, by rubbing and especially just by walking on carpet. ] Without the strap you can zap a PC board dead without even knowing it.  Any PC store will have them in stock.
(ii)  Not bending the pins on the end of some boards when you plug them in.  Be gentle but firm.