I have a cyclops fluid trainer and like it for what it is -- that is an indoor workout. I would rather be outside too, but some days it is just too cold and snowy.

My friend has rollers that I am going to try out, but I watch her almost fall off them, and I wonder if they will be for me in the long run. People do say the rollers are more dynamic and less boring to ride, but they are also more dangerous in that you must pay attention at all times, lest you drift and fall off.

You might see if you can try them out at the bike store before you decide what is right for you. Best of luck.