Question about resolution and new 19" Westinghouse LTV19w3

I am looking for a flat panel lcd for a good mix between PC use and TV use, but probably a little more PC use. I want to stay under $500 and would like it to be widescreen(I will watch a lot of movies and play around with HTPC stuff and gaming). I have gone back and forth on a couple different displays and recently saw the Westinghouse LTV 19w3 model at BB. This looked very nice in store and had a very slim and simple design. It has both DVI and VGA for pc use and has a higher resolution of 1440x900. I know the higher resolution is better for most pc use but because it is an unusual res. I am afraid that games will not support this resolution. Does anyone see this unique res. as a problem for pc gaming (and maybe console gaming if I ever go that route)? Also, if anyone has any input on other monitors I should look at in this price range please lend your suggestions. I would ultimately like something bigger than 19", but I just do not see to much in my price range. I have been really leaning heavy towards the dell 20.1" but the Westy can be had around the same price and even though I lose an inch I gain with more inputs and a tv tuner. What do you guys think? I have also thought about the new gateway 21" but it seems to be almost $150 more than what I can get either the dell or the Westy for. I would love a 23" or 24" like the dell 2405 but I really do not want to spend upwards of $650-700.