not too terribly high let's see here...
Intel C2D E8400 (3.0ghz/6mb/1333fsb) $185 at Fry's after tax
Thermalright Ultra-120 Extreme $75 bucks with silverstone fan
Arctic Silver Ceramique
Gigabyte Provided EP45-DS3R motherboard $145 shipped if i weren't sponsored
Gigabyte Provided NX88T512HP Graphics Card (G92 8800GT 512mb) $190 shipped if i weren't sponsored
G.Skill F2-6400PHU2-2GBHZ DDR2 800 4-4-4-12 $145 now (279 when i bought it a year ago)
2x Western Digital 300gb Velociraptor 16mb 10,000rpm $300 each shipped
PC Power & Cooling Silencer 750w $165 shipped
Lian Li PC-7B $120 shipped with window
that's $1290 with the E8400
the E7200 cost me $125 so if you want to use that alternatively then you can save about 60 bucks. i wouldn't do it unless you want to test % of overclock since the E7200 has a 1066FSB and a 9.5x multiplier. it should be a beast of a clocker if i can get all my ducks in a row.