PML,
Dont be too disheartened by some of the coments here. If you dont ask, you dont get! Get yourself along to your local gliding club and make some enquiries. At our club we have 8 tuggies, 4 of which happened to turn up out of the blue and ask whether they could fly the tug or not. Neither of them had any gliding experience and at least 2 of them were low hour PPL's. It was just a simple case of our club were low on tuggies at the time and these guys happened to be right place, right time. Between us all, we probably average 30 - 40 hours per year from it, although at some clubs you get a lot more. Best advice, put yourself about and see what you can find.