Are these decent GPU options for my new rig?

As I am trying to decide on the last few parts to get for the new computer I intend to make, I cannot decide on a GPU, or figure out what is best for the parts I have so far.

Currently this is the setup: http://pcpartpicker.com/p/pjzt

I have not decided on a harddrive yet and another factor which might make this decision more difficult is the fact that my GF is buying my a new monitor for the holidays and I do not know what it is, but Im thinking she got a pretty decent one so Im assuming a moderate to high resolution.

Here are a few GPUs Ive picked out, are these ok or should I be looking in a different direction?

http://www.newegg.com/Product/Product.aspx?Item=N82E168... (HIS iCooler H777F1G2M Radeon HD 7770 GHz Edition 1GB 128-bit GDDR5 PCI Express 3.0 x16 HDCP Ready Video Card

http://www.newegg.com/Product/Product.aspx?Item=N82E168... (GIGABYTE GV-R787OC-2GD Radeon HD 7870 GHz Edition 2GB 256-bit GDDR5 PCI Express 3.0 x16 HDCP Ready CrossFireX Support Video Card)

EVGA 01G-P3-1561-KR GeForce GTX 560 Ti FPB (Fermi) 1GB 256-bit GDDR5 PCI Express 2.0 x16 HDCP Ready SLI Support Video Card (Sold out currently on Newegg)

Edit: I forgot to add that I currently have a Nvidia 9800 GTX+ 512mb so there are alot of things out there that are upgrades for me :X