I've been delighted with mine. Your 4400+ is going to scream.
480 Watt Antec ATX Power Supply
AMD Athlon64 +3200 Venice 939pin
ASUS A8N-SLI
1gig Ram
PCI Express(x16) Video
GeForce 6800GT Graphics
250G SerialATA HD
Simple to assemble, and lightening fast.
I have had none of the problems discussed on the net.
3D Benchmarks over 13,000 with a single GeForce6800
Chips run cool with the stock fans (under 115F) even under the toughest loads (HalfLife Upgrade and FEAR)
I uninstalled all the overclocking software. No need to overclock.
I may never use the 2nd SLI slot. Initially, I had planned to use two Video Cards in tandem, but the one GeForce6800 (SLI capable) is MORE than enough for even the most resource hungry games today.
On Edit: The ASUS Motherboard has a hardware firewall that is slightly confusing to configure and use.
It take a bad rap on "The Net" about "corrupting downloads", and many recommend
disabling" the ASUS firewall.
I spent some time getting mine configured corrrectly, and have had NO (zero) problems with it.
I recommend keeping the ASUS firewall.
Remember to log on to the ASUS site for current BIOS and Drivers (1st thing)
The Mobo comes with several utilities:
Probe...allows desktop monitoring chip temps and fan speeds...cool
There is another one I can't remember what it is called....something like "Boost" or "Turbo"...It allows for desktop overclocking.
I uninstalled it. I have no need to overclock, and it was cheesy looking anyway.
Have fun.