Scott Flinders did pretty well for us when Michel was injured. I actually thought Henderson was a fairly good keeper when he was on loan, then once he signed for us, he, er, wasn't. Ben Roberts was superb, both on loan and once signed.
Others: Sidwell (probably best apart from Zamora)
Martin Keown (back in 1980s)
Mark Yeates (wish we'd signed him)
Sergei Gotsmanov (don't think we ever signed him permanently)
Dean Bowditch (till he got injured - scored a class winner at Bradford)
Awful:
Lawrence Davies
Sam Williams (didn't look like he could be bothered at all)
Zesh Rehman was good at first. Think we signed him again and he didn't look half the player