Looking for the best graphics card for my system.

Looking for the best graphics card for my system.
PSU is by High Power
HP-500-G12S
AC INPUT : 100-240V (Full Range) Frequency: 47-63Hz
Maximum Input Current: 8A
Voltage
-+12V1---+12V2----+5V-----+3.3V-----12V-----+5Vsb
Max
-18A--------18A------25A------25A------0.3A------2.5A
Regulation
-+ 5%----+ 5%----+ 5%----+ 5%----+ 10%----+ 5%
Ripple & Noise
-200mV---200mV--100mV--100mV--200mV---100mV
Max Output
------432W-------------150W-----------3.6W----12.5W
Total Power
500W

Currently I have a Nvidia Geforce 8600 GTS. Has dual dvi and s video output. No Complaints! However, what I am looing for is VGA and HDMI outputs.
My Monitor is a Samsung LED 19".
I have a Dell XPS 410.
My pcie is 1.1
q6700 for cpu
ddr-2 800mhz @ 8 gig
Windows 7 Professional

I am currently using an adapter. ( dvi-vga ). That is not the point. I would like to use the hdmi for both video and audio.
I watch blue ray, etc... The only game that is played is "Men of War" (entire series). On my other 410 I use the vga to monitor, and hdmi to LCD for movies. I am using a AMD card for that one, and yes I did try to use same card for second 410, but unfortunetly it will not load amd drivers. WHY? Don't know, don't care, tried everything, and gave up.
So .... this piticular 410 likes Nvidia and thats fine. I would just like an opion on which Nvidia with Hdmi out would be the best for my system.

sincerely,

Ken