I've sold and bought stuff here a couple of times before, but it's been awhile so here's my ebay feedback...
NIB 7800 (I think) - Make an offer
I got this in a huge Atari lot off of Craigslist a while ago. The guy said it had never been used, except for the power supply (lost his other one, so he used the one from this NIB one) As far as I can tell it's brand new. I can always provide more pictures if you are interested. I'm not much of a 7800 collector, so I'm not sure what to ask on this one, so shoot me an offer.
11 Vectrex games w/ 4 overlays - $60 plus shipping
If you don't want to buy them all:
Game w/o overlay - $5
Game w/ overlay - $7
The Scramble overlay has a small chip in the lower right-hand corner as you can see in the picture
Dreamcast, 3 controllers, 4 games - $35 plus shipping
Light Sixer boxed - Make me an offer
This is a boxed light sixer made in Sunnyvale, CA. The serial number on the bottom of the console matches the one on the box, and it comes with a grey power supply. Again, not sure what to ask for this, so shoot me an offer. I can get you more pictures if you want them.
If you have any questions or want any more pictures, just send me a PM!