Thinking about buying this monitor

I'd like to 4 table without overlap. I've searched- but I can't find an answer. Before I buy a new monitor- how do you figure out if your video card can support 1600x1200. I have a Dell 3000 desktop (I know- very basic) It's less than a year old. I would like to keep the costs low fow now- so an LCD is not an option. I found this on E-bay. Less than $100 after shipping. Any opinions are appreciated. Thanks from a Noob.
http://cgi.ebay.com/Dell-19-D1226H-Compu...1QQcmdZViewItem