In light of my Sega Saturn thread (tumbleweed?) I also recently fixed my Dreamcast (very easy fix to a very common problem) and have had a blast playing some games, and ordered a few games I wanted when I was younger. Surely there has to be a lot of Dreamcast owners out there who remember the great games it had.
Looking at my (small) collection, I have.
Virtua Fighter 3
Sega Rally 2
Metropolis Street Racer
Ferrari 355 Challenge
Star Wars : Episode 1 Racer
Chu Chu Rocket
Decided I wanted a few of the games I didn't get when I was younger so started with
Sega GT - It already came, I think it's a cheap ripoff of Gran Turismo and I really don't like it.
Jet Set Radio
Dead or Alive 2
Ready 2 Rumble Boxing.
Had a look around and I quite fancy Skies of Arcadia and Shenmue 2 but they are both very pricey compared to other games. Any other recommendations?