I recently bought a 19 inch Visual Sensations at Wallmart for $200. Its clunky, but I'm like you, space isn't a problem. Its also not as sharp as the higher dollar ones so you get what you pay for. I'd suggest 21 inch if you have the bucks (and the sharpest resolution you can find), especially if you use any modeling programs. If you have a local store that sells used monitors, and if the price is right, that's one way to get bigger for cheaper. I'm not all that excited about the cheap prices on Ebay because there are very high shipping prices. I know someone who paid more for two 17 inch used monitors on ebaby (with shipping) than he would have paid new at the store.