Andy,
Try doing a line in mod on it, so you can get better quality sampling with it than the inbuilt mic. The sampling specs for the SK60 are significantly better than any of the other sk's - 13KHz sampling as opposed to 9.3kHz. It would almost be a useful real sampler with that. You can also bypass the anti-aliasing filter on the output for even better quality. The yamaha vss30 is only a little better than that at 16k, but it doesn't keep the samples when you power off, unlike the sk60.
I've been keeping my eye on SK60's lately, and I think that although there are less features than the other sk's, most of the sk bends should work on it. I plan to get one and do a memeory expansion on it, like my sk8.
Cheers, Graham