I do infact have a softspot for Dreamcast. I wish Sega was releasing more games in the US for it.
I just finished Halo last night, god damn that game is just awesome. Everything is top-notch, from design to conception. I high-watermark for sure. The AI is un-fucking-believable, and the visuals made me shit my couch. The story that unfolded was really cool, if not a little rushed. The coolest thing is that just when you think it's getting a little stale, the shit hits the fan like you won't believe (there are some great twists).
I thought UFC for dreamcast was pretty good, I mean, they could have messed it up very easily. But it was playable, and was cool to see the fighters (and BJM) up there. Models/textures were excellent. But what worries me is that I don't think they are adding any new gameplay elements into Tapout and Throwdown. The team that did UFC on dreamcast is now doing the WWF game for XBox.