I do not own a wind trainer but have used both wind trainers and rollers for inside cycling. You can hear your radio over the trainer, the one I used wasn't too loud (I can't recall the brand, sorry!!!) Towels and the fan are definitly good ideas!!! You will sweat! We would do intervals on the bikes, but I bet a spinning video would be much more interesting.
the trainer is great because you can adjust the pressure, make it harder or easier. Plus, you can set up just about anywhere. NashBar is a great place to go to buy one--www.nashbar.com, or you can call them and order their catalog (however, they have internet-only deals often times). they also carry a wide variety of clothing and other accessories. There are lots of other cycling companies out there, but my experience is that Nashbar has the widest variety for the lowest prices.
Rollers are another story, not sure if you're even interested in those. They do not offer the resistence that the trainer will, but they are great for practicing 'holding your line' esp. if you are into competitive cycling. You'll have to check them out at Nashbar to see what I'm talking about--too difficult to describe. It'd be harder to do a tape on these, however, if you got real good at using them, you probably could.
Good luck and happy cycling!
Kelli