Any thoughts on the best place to order custom built High performance
PCs? I can't stand the newer all integrated systems. I do not want
integrated Graphics, sound, NIC, ect.

newegg.com has a good selection and prices. Look for a motherboard with
the nForce3 250Gb chipset.

Your aversion to integrated graphics is understandable, since they've
always been somewhere between pathetic and mediocre on the performance
scale. But you'd be hard-pressed to find a new motherboard that doesn't
have both integrated NIC and sound these days. You're better off with
an integrated NIC anyway (particularly for gigabit ethernet), because it
can run straight off the south bridge and not tie up any PCI bandwidth.
As for sound, new motherboards support 8-channel audio and SPDIF
digital output, so I don't even see the need for an add-in sound
card--and nothing's stopping you from disabling the onboard sound
plugging a sound card if you want to anyway.