I just wanted to say that if you've a Dreamcast, and you've got an open VGA or HDMI port on your TV, you owe it to yourself to get a VGA box and the Monoprice VGA to HDMI adapter. Read my review of the adapter here on AVS
I was a huge DC fanatic. My favorite games were Sega Marine Fishing, Soul Calibur, Power Stone 2, Crazy Taxi, Phantasy Star Online...I had the broadband adapter and I remember playing Phantasy Star Online with 3 people in one apartment in college (2 phone lines and the BBA). I sold the adapter for $130 when I was broke (shortly after college) and eventually sold the Dreamcast, but I got nostalgic a few months ago when the 10 anniversary happened, so I got a new one.
The only thing I don't miss is playing with wired controllers. Other than that, the DC was/is supreme!