New Graphics Card Required

Hi,

Really need some help. Need to upgrade an old LCD and am going to go for a 24 inch with native resolution of 1920x1200.

Only problem is my current graphics card (nVida 3d Prophet 3) only supports resolution up to 1600x1200.

So, need a new graphics card that will work on my mobo (Asus A7N8X revision 2) with no problems.

Will happily go for an 'upgrade' to my existing card but am not a gamer. Do do lots of photo editing and related memory intensive tasks.

Could anyone suggest some options as I think this may be a bit of a minefield. I would rather have tried and tested than cutting edge.

Thanks in advance for any replies.