Need advice

Hello everyone,
I am embarking on a new system build.I am primarily hobbyist dabbling 3d modelling and illustration and its time I got a new rig.I have a budget of $1200.
I've decided on the following components:
1)A Q6600 processor.
2)A 2 GB memory kit from A-DATA,the Vitesta Extreme Edition.
3)A Geforce 8800GT from XFX
4)A Seagate Barracuda 160 Gb hard disk.

I am not going to overclock anytime soon.
I need the option of upgrading to the standard max of 8 Gb of ram.I dont plan on using SLI and I will be running Windows XP.
I have the following questions,and would really like some recommendations.
1)What motherboard would serve me best?(preferably under $200)
2)Will I definitely need an after market CPU cooler?
3)What sort of a power supply will I need,400,500or 600W?(around $100)
4)I was really impressed by the Antec P182.Are there any other options with the same design specs,you know,clean lines,black metal all around...

Thanks in Advance,
Cheers,
Bhargav

1) ASUS P5K, ABIT IP35-PRO, are other good choices.

2) Beside overclocking, an aftermarket cpu cooler can be quieter.

3) 8800GT recommends 425W 28A on +12v's. The bigger the psu, the more headroom for future upgrades.

4) Antec knows how to build easy-to-install cases & doesn't skimp on the manuals (i.e. some have text so small that it looks like a fine print, others have very vague Engrish.)

Hullo

First questions:
1) Listen to the others since they prolly know a lot more about mobo's then I do. Though i'd recommend what i'm using right now, MSI P35 neo2 FR.
2) You'll be fine with the stock cooler for the CPU. Though you may want to consider an HR-03GT for the graphic card. I heard that thing could get loud.
3) a 600W+ would be good for future upgrades so, OCZ STEALTHXSTREAM 600W sounds good. Consider Antec Earthwatt 500 if you want something cheaper
4) Stick with the P182, you can't go wrong

Lian Li is another good case choice. Another is Silverstone. They're no frills non-bling. Plain looking. Aluminum. Expensive.

P5K vanilla minimum, P5K-E or Deluxe is better if you can afford it.