Where do you hail from, Fangio?
If you need something pre-assembled there's plenty of places they do that but we need to know your country.
As for the waiting game, yes you probably could do that as well, but I take it you're not a hardcore enthusiast that absolutely need to have the latest socket? Now is a good time to buy if you're in desperate need of "quality time". Bulldozer will probably be on par with Sandy Bridge(the newest intel socket) for a little less money(amd is traditionally cheaper than Intel) and I don't think Bulldozer a whole lot faster.
*edit* Ok I saw the $. YankLand it is.
*edit again* Here's something I whipped up for ya. I picked a full tower because they are much much easier to work with and you get some breathing room. The HAF X is a top notch steel case. Great airflow.
http://secure.newegg.com/Shopping/Sh...px?Submit=view
Total $2,227.65
You won't find a pre-assembled with those specs any cheaper.