Gtx 770 vs 780 on one monitor?

Sorry if this is any trouble for anyone here, but i'm planning on building/ordering a pc,
i'm debating on weither buying form cyberpower, or building from newegg (but id probably mess it up whilst building the investment)
but i'm deciding on weither getting the gtx 770 or the gtx 780, please note that i will be gaming on one 32 inch monitor/tv. I already have everything sorted out, such as cpu, power supply, and motherboard to name a few…
ill be playing games such as skyrim, terraira, minecraft, indie games and such…
and that just about covers it! Thank you so much, and if you have any experience with cyberpowerpc, could you please note it. Again, thank you, and sorry if this is any trouble.

780. If i'm correct its a better graphics card but the 770 isn't the worst either.

If you don't think you'll be needing heavy power for future games, i'd say go for the 770. It's a remake of the previous generation (600 series) gtx 680 - though more powerful.

If you want to be able to handle new and graphics medium-heavy games into 2015-2016, take the gtx 780. It's a very powerful card which i'd guess you won't regret investing in.