Need help on choosing a graphics card

[lamps]

Budget of £200 for the card.
Cant quite decide on which to choose since there is so many. Was planning on getting a 4890 and buying another in a month or so and xfire them, but after reading numerous threads it seems the power needed (for xfire) for them is a bit over the top (ive only got a 600w ps)

Basically just want it for gaming on high quality (1 monitor )

motherboard is http://www.overclockers.co.uk/showproduct.php?prodid=MB-169-GI
if only 1 card is needed might downgrade the motherboard to the lower gigabyte one since its about £35 cheaper (lower one doesnt xfire at x16)

Thanks

 

[lamps]

ah sorry forgot that, currently my monitor is 1680*1050 but was planning on upgrading when i got the 2nd card.

 

[lamps]

i think ill stick with the 1 graphics card, from what ive read, saves buying new monitor.

But still stuck on which one to get

 

[lamps]

i dont really fancy going to far over 200, id stretch to a 4890 but no furthur so max £215

 

[lamps]

ill take your word then and get a 260 ive decided on http://www.overclockers.co.uk/showproduct.php?prodid=GX-089-EA