I just bought an ASUS 2GB GTX 770 one week ago. It is a great investment for gaming and graphics mod. Practically 2/3 of a titan for 1/3 the price. My only advice is that make sure you have a powerful, CONTINUOUS PSU (unlike me) and buy a 4GB Vram 770 for graphics mod'ing games (like Skyrim). I maxed out my ASUS 770 2GB VRAM on Skyrim mods already, but I am still impressed by the 770 processing performance and fps output. I was glad I invested my money on a 770 and I am very satisfied with my 770. You won't be disappointed. It also runs really cool, the ASUS 770. So far I haven't exceeded 62 Celsius.
*Do more research if planning on buying a 780 or Titan. You'll be throwing money away on a 780/Titan if you're not running 3 monitors or a resolution monitor higher than 2k. Don't need that many CUDA Cores unless you need the extra processing for more pixels and extensive graphics data. Gamers make this mistake a lot. This is my opinion in remarks to data specs, newegg tutorials, and reviews from PC techs. Ultimately, it's your money.