Danny,
I know what you mean! I love riding my Felt S2 triathlon bike on the roads- we live in a fairly mountainous region in upstate NY and the rides are always challenging with the reward being a fast downhill segment. However, I also usually put between 1 and 2 million meters on my C2 Rower each year. The advantage of the rower is that you can always squeeze in a workout if the weather is poor. This piece of equipment works the entire body!
My surgeon recommended that I hold off until 6 months with getting back on the rower due to the repetitive forces encountered on each pulling motion and the extreme flexion that you may have as you let the handle out. I had already used the rower a few times when I thought to ask about using it.... Some other surgeons don't have restrictions on using the C2 but I know Dr. Gross is somewhat conservative and I will follow his instructions- I am at week #9 today.
In the meantime, I am using my bike mounted on a fluid trainer and my old Nordic Track ski exerciser, both of which seem to be plenty of exercise as I return to fitness after the operation. I am working with the weights as well, making sure to avoid hoisting anything over 50 # for the first 6 months. Triceps push-downs, bench press, dips, chin-ups, incline bench seated dumbell curls- all of these can be done without stressing my hip.
Good luck in the continued recovery!