Doesn't help you much but I have the Epson 3170 standalone scanner which will scan negs/slides for 120/620 and 35mm.
How many slides do you have. If not too many I would be willing to scan them for you and burn them to a CD/DVD.
Alternatively, you could try a local photo shop who may do the same job. I have used click here in the past, before I got my own scanner.
They were very good.