I have the Viewsonic 19" widescreen with the same 1440x900 res and it games just fine. I've recently been playing Dungeon Siege 2 online with a friend at 1280x1024 and it looks just fine, nothing is askew. Check out http://www.widescreengamingforum.com/
they have a lot of answers along with fixes for some games that don't quite support widescreen formats.
I hug my widescreen monitor every night before I go to sleep.