I don't know about the CyclOps, but I've been using the numbers from Kurt with their road machine.

I have the wattages with corresponding speeds taped to my top tube. I know it's not as accurate as a true power meter, but it's also better then going by HR alone. HR can vary greatly, same with PE, or at least it can for me....Depends on how I feel that day in general...The speed of the rear wheel does not lie. It gives me a more measureable constant to go by and range to work within.

I really think this has improved my indoor training this winter. The true test will come in about 4 weeks whne I head to Georgia and do some real road riding and then at the beginning of April when I do my first race. By that time I wll be in possesion of a Powertap and I can see how close my numbers on the trainer are in reality...