I found a Dreamcast lot too! Went to a flea market I've never really gone to but is on my way home and they had the following bundle for $40.
Dreamcast Lot Pickup 2013-01-22 by
xelement5x, on Flickr
Dreamcast Lot from a random flea market!
Dreamcast Unit (no Power or AV cables)
Dead or Alive 2 (disc only)
2 Regular controllers
1 VMU (with dead batteries of course)
1 Phone cable (bleh)
Serial cable for homebrew/backup (odd to find, and don't really know how to test

)
Two DC X Skills 2-in-1 Adapters (for Keyboard/Mouse)
Controller Extension Cable
Official Dreamcast Arcade Stick
TopMax Arcade Stick
I'm pretty sure I can find a replacement power and AV cables relatively cheaply if I give it enough time. I tested it all with my existing setup and everything works great!
The serial cable was the odd one out at first until I did some Googling about it, and I didn't know that those one adapters were for keyboard/mouse at first. I really just got it for the Arcade sticks though, they're kind of pricey (around $30 each) and hard to find. I'll probably try and sell the DC plus hookups, DOA 2, VMU and controllers to cover my costs though.
Also, while not really a find, this Oh Mummy homebrew came in yesterday so I snapped some photos to post in here.
Oh Mummy! Case by
xelement5x, on Flickr
Oh Mummy! Inside by
xelement5x, on Flickr
I did a quick post
detailing my first impressions here.