My personal opinion for your build:
If your on a budget of $1,600 then an SSD is just not necessary. A good 10,000rpm hard drive should get you great performance that is somewhat on par with an SSD. Might I suggest a Western Digital Veloci raptor(auto correct me). That way you have a faster
Than normal hard drive, but your not shelling out the cash for an SSD.
Whoever suggested the GTX 570 Twin Frozr III, PERFECT! Twinfrozr cards are amazing with speeds and overclocking ability IF you ever get into that, but overall it is the perfect card for you.
Definitely go with the I5 2500k since your on a budget.
Might I suggest the MSI- P67A-G45 motherboard. Perfect for any Sandy Bridge setup, has
SLI compatibility, and is relatively affordable. MSI has great quality of products. BUT, Asus will always come out on top. So if you have the money, get an Asus motherboard and you will not be disappointed.
As for a cooler, you can never go wrong with either the Hyper 212(can't remember who makes it) or the NH-D14 from Noctua. Those two are the top of the line coolers for any computer right now and are relatively cheap.
For RAM, Corsair or Mushkin. Get a decent set at 1600mhz, and if you can get 8gbs of it instead of 4. I hear people have problems with G-Skill, so I would avoid them. I would suggest Corsair Vengance.
For a power supply, a Corsair TX750w will do the job. I personally have one and Corsair makes the most reliable power supplies on the market. Now,if you ever plan on getting 2 video cards, then I would suggest the HX1000, also from Corsair.
Go out and get yourself a decent Blu-ray drive. I'm sure someone here has already suggested that.
For a case, I would definitely suggest a Corsair 600T white edition. That thing looks bad ass. But hey, it expensive. On the otherhand, I suggest either the NZXT Phantom or any other MID to FULL tower case, but honestly you are going to want a decent Mid tower if your space savvy.
In all, everything i have listen can be found on Newegg. And I will get you a price list here:
Intel I5 2500k- $219.99
MSI N570GTX Twin Frozr III- $369.99
Noctua NH-D14- $89.99
OR Cooler Master Hyper 212 Plus- $29.49
Corsair 750TX 750w- $119.99
OR Corsair HX1000- $239.99
Western Digital Velociraptor 300gb- $149.99
Corsair Vengance 8gb 2x4gb 1600 RAM- $69.99
Blu-Ray drive- $150-$200
Corsair 600T white edition- $179.99
NZXT Phantom- $139.99
And that is everything you need to get up and running!
And can someone please put up the totals to what I have here, I can't scroll up in my reply box
But I hope I've helped, and good luck with this build. It's going to be a great one!