Alright thanks for the responses.
Glad to hear I can run ATI cards without any issues. What do you mean about "headroom" though?
This is very helpful and I do appreciate the comments re: my hashrate. Also, like someone said, it is something. Keep in mind though, that this is just the beginning to my mining rig with my ButterfylLabs Jalepeno 5GH/s and a few 333Mh/s ASICs. This is just going to supplement those, really.
Electrical costs and internet costs aren't really a factor for me also, as an aside. That being said, how much electricity does a 800watt PSU cost per/day?
I'm currently mining bitcoins just because I don't have any knowledge about the others although I would definitely appreciate some links so I could read up on some viable options. One of my pools also does Litecoin mining, but it's my understanding that those aren't really currency. What are some other good coins to look into?
Thanks again for all the help!
Headroom: As in the sense of having enough available wattage/power on the PSU to power multiple GPUs or whichever GPU you pick.
I.e. you need roughly 300W load to mine a 7950/70.
So if you have a 500W PSU, subtract (generous figure, but I'm allowing for discrepancies and degradation in PSU) 10% (50W) leaving you with 450Ws of usable 'headroom'.
Take out 300W for GPU, leaving 150W
Which leaves 150W for your CPU/RAM/Fans/HDDs/etc.
And costs if we assume, substitute in your own values if you know them,
Electrical cost per KW unit: $0.20
800W PSU (If we assume it to be 100% efficient at 100% load (which is basically impossible)) 800W = 0.8KWh (Kilawatt Hour)
Hours in a day: 24 Hours
Do some simple multiplication
$0.20 * (0.8 * 24) = $3.84
Price per unit multiplied by (KWH of device multiplied by 24 hours in a day)