I just had a custom pc built last night for $1600....and I'm pretty sure parts are more expensive where I'm at. You're built looks good, but check out what you can get for your money!
Intel Core i7 4790k, Nvidia 780ti 3GB graphics, 16GB kingston hyperx ram (2400mhz), 2TB WD HDD (black is the fastest), Samsung DVD R/RW, Windows 7 home premium, CoolerMaster 500w case, and Gigabyte Z97 motherboard
I built it according to the specs of the alienware x51 (but even better). I was going to put the GTX 970 in there but the 780ti is actually much better...
Hopefully this can help you make your decision. But to answer your question YES, you can easily build a really nice pc for $1500
Good luck!