on a serious note though Choo Choo & others, I've been considering a lower end turbo from Elite (couldn't tell you which model).
Are there any that can be recommended & is it a faff changing back wheels over etc ?
What might I find annoying about turbo's ?
Have you an old wheel you can just drop in for the turbo, or if you aren't planning on using the bike on the road over winter use an old tyre. You could buy a special turbo tyre but an old one is a cheaper option. I used to find the tyre would tend to get a flat spot on it, and if it was fairly new, you are spoiling a good tyre there.
You get very hot and could do with a fan to cool you down depending where you are using it. It is handy to buy a sweat mat you stretch from your bars to your seat post, to stop sweat getting on your top tube, assuming it's a nice bike and you don't want sweat ruining your frame.
I have an elite fluid turbo, but after looking at the current range, it must have ceased production for a newer model some time ago.
I still maintain I find the rollers more fun due to the fact you have to concentrate, turbos offer far more resistance, but you can just sit there and pedal. It's up to you how you use it and what you get out of it.