Ah, that clarifies it. I'll be content with DX9 for now, though any suggestions for new card would be welcome.
Power Supply is 850w
Operating System: Windows 8 Pro 64-bit
System Manufacturer: Gigabyte Technology Co., Ltd.
System Model: EX58-UD3R
BIOS: Award Modular BIOS v6.00PG
Processor: Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz (8 CPUs), ~2.8GHz
Memory: 6144MB RAM
Available OS Memory: 6142MB RAM
(Price range - up to $300)
I have a very slow adsl connection, so I am not sure if it would be worth it.
Thanks, you guys are wonderful help.