Graphics cards !!! Need a cheap upgrade from 128mb Gforce 8300 gs

[Colinevan]

Id thought id ask on here as some peeps are very clued up on there pc's.

My current setup is an advent core 2 quad 2.4 ghz
4 gb ram
Nvdia gforce 8300 gs 128 mb card. its still available on ebay and seems to be popular from some reason. Some sellers want £40 for it.

Now i mainly use this pc for looking at pics from my dslr, music itunes and a few games , but i have now started to watch dvd's or downloaded films on a large hd tv in the bedroom. So far it plays ok, however windows base scores are low (3.4 as opposed to 5.9's for most other performances )for graphics department so i guess its either upgrade or even replace machine as it runs vista 32 so doesn't maximize all the ram available.

Now i see graphics cards of around 1gb for a rather lowish £40. Im open to recommendations or even second hand bargains if anyone can advise of a prticular card or indeed ones to avoid ( maybe high gb speed but crap in other areas).

Any advice is greatly appreaciated.

Col.