It's your best bet Ender. You'll pay a premium on the upgrades, when that money could be put towards a new box. I always tell people, see what you can get for the old OEM. You'd be surprised, there's allot of people out there who are willing to cough up some serious dough for "what once was" a decent OEM, when new. It only adds to the overall $$$ that could go to a new rig.
Best advice in the world, bar none, in the Eggxpert. Save for that Pene-hack! LOL.
Saving for the 4870X2! MSI K9A2 790FX / AMD Athlon 64 X2 6000+ Windsor 3.0GHz/Xigmatek 120/ Antec 900/HD4850 Xfired/mushkin Black CL4, 2 x 2GB DDR2800 /Samsung Spinpoint 320GB SATA/ PCPC 750W CF Silencer/ LITE-ON 20X DVD±R /WD My Book 500GB/Logitech X-530 70 watts RMS 5.1 Black Speaker System /Build2: Biostar 780G/AMD 4600+ x 2 @ 3.0/OCZ Platinum Rev2 2 x 1GB DDR2800 /Logysis Acrylic/Vista/Ubuntu 8.1 / Corsair 550W PSU