I'm currently using a Pentax Optio E20 and I'm really happy with it. It was a late Christmas present from my OH (who'd originally bought a Vivitar camera that was kaplooey, didn't work and went mental one day and never worked properly after and it went back to where it came from... lol and the refund went straight into Jessops!) it's 6mp takes SD cards and it small enough and light enough to chuck in a bag when going out... I think they're around the £90 mark.... Failing that, if you're only gonna use it for eBay purposes, then I'd also have to recommend 'Concorde' - I had a 3.2mp camera and it was a joy to use... I gave mine to my mother for her birthday and she's loving it
(she's never used a digital camera before... and she's heading the right side of 70
)