Get a DVI to HDMI or HDMI to DVI cable. My new laptop has an HDMI port, yet I'm using my DVI/VGA HP w2007 monitor with it. DVI and HDMI are essentially the same thing, they just use different connectors. If you don't get a monitor that has HDMI built in (you can get a DVI monitor and use it with an HDMI port, like I am with my laptop), at least make sure your monitor supports HDCP through its DVI port (the w2007 does).
My monitor works well on my laptop (HDMI>DVI cord), desktop (DVI connection), and Xbox 360 (older model, VGA cord, no HDMI port). The DVI/HDMI cords come in both ways, you can get one that goes from HDMI to DVI and one that goes from DVI to HDMI. The only problem is if you want to use two devices, you'll have to either get a selector box or just keep plugging in the device you want to view on the monitor (HDMI plugs are pretty simple though).