i got the Gateway XHD3000 30" with the 6 vid inputs and PIP, etc. Built in speaker sounds suprisingly good for what it is. it's about 1.5 - 2 feet from my face but i don't have to turn my head to see stuff as some people think when you have larger monitor. colors look good, response is good. i use it also for work where i do alot of coding - really handy to have the extra real estate. not cheap but the fact that it had multiple inputs sold me.
supposedly Dell is coming out with a next gen 30" with display port interface. the new nvidia cards coming out in feb/march look like they will support display port. The gateway does not have this adapter though.