Ok, how about this build (V2)

[mariod505]

Non-gaming PC for day trading...

CPU: Intel Core i7-930 2.66 GHz 4 Cores, 8MB L3 Cache $295
Motherboard: Asus P6X58D Premium $310
RAM: G.Skill Pi Series 3x2 GB 1600 mhz CAS Latency 7 $180
PSU/Case: Antec 1200 ATX + Antec CP-850 850W $244
Cooler: Coolermaster Hyper 212 Plus $35
SSD: Intel X25-M Mainstream SSDSA2M080G2XXX 2.5" 80GB SATA II MLC $225
GPU: SAPPHIRE 100283-2L Radeon HD 5770 1GB 128-bit GDDR5 PCI Express 2.0 x16 HDCP Ready CrossFireX $160
Optical Drive: OEM Samsung SH-S223C CD/DVD Burner SATA (NE$22)

Total: $1473

 

[coldsleep]

The PSU is overkill, but other than that, it looks pretty good. If you're not planning on overclocking, the cooler is unnecessary (assuming a retail processor).

Do you need a data hard drive?

 

[mariod505]

The PSU is overkill, but I wanted a solid box to keep for a while, plus I might upgrade the GPUs. Do you think the GPU is good bang/buck? That's where I'm in most unfamiliar ground.

As for the HD, I'm going to try just having a SSD and see if that works. My NAS does most of the heavy lifting on the network.

As for overclocking, I'm a total noob, so I might try it out when the components get here. I guess I just wanted to make sure all the pieces would work fit together and had a decent chance of reaching a respectable OC multiplier.

 

[coldsleep]

The 5770 is pretty good, depending on your resolution. I think it's an excellent choice for a non-gaming rig. You could probably even get away with a 5670, but I think the 5770 is appealing.

You might consider posting the rest of the info from the How to Ask for New Build Advice thread if you want advice geared toward your budget/resolution/situation.