Have an option of getting the x1800XL for $340 or the x1800XT for $480. The other option I was considering was the 7800GT (oc'ed) for $320. Question is, would you rather have a 1800XL > 7800GT due to problems like shimmering? Second, is the upgrade of $120 to go from XL -> XT worth the money given the performance delta?
Edit: I should note I am running a 19" LCD.
Edit: I should note I am running a 19" LCD.