I am planning on upgrading my MSI 896MB GTX 275 soon, during Summer 2012.
USAGE: Adobe Suite CS5 (from now on CS6) daily use with exception of rare use of Premiere ,Gaming (mostly RPGs & Strategies, no MMOs)
POWER SUPPLY: Thermaltake Toughpower 750W PSU
M/B: Gigabyte EX58-EXTREME
CPU: Intel Core i7 920 @ 2.67GH
RAM: Total 6GB Triple Channel OCZ3P1600LV2G PC3-8500F @ 799MHz (7-7-7-24) overclocked
PREFERRED WEBSITE FOR PARTS: amazon.co.uk or any with low/free shipment in Greece
CASE: Eureka Thermaltake Aluminum
HDDS: 1x RAID0: 500+500GB WD RE3 HDDs, 2x SAMSUNG 1GB HDDs
OSs: Windows 7 Ultimate 64-bit SP1 occasional Dual Booting Ubuntu or Mint
COUNTRY OF ORIGIN: Greece
MONITOR RESOLUTION: 1920x1080 Dual display DVIs
Usually I end up with MSI or ASUS. I'd like Physx and high AA filtering to run smooth, and if possible to use any of Adobe Suite CS6 compatible GPU techs.
I'd also like to have the most RAM possible (2GB maybe) available on the Graphic card.
I suggest a 2GB GTX 560 TI for your usage. Sorry, but I don't know any links that I could give you if you need it shipped to Greece. Also, if possible, go for an EVGA card... They are usually the best Nvidia cards and have the best warranties.
If you go for the GTX 560 Ti, make sure it is a 2GB model. Most of them are 1GB models, so don't get tricked into buying a 1GB model if 2GB is your target.