Hello,
I have a Technomate TM-Nano 3T Tripple Tuner with a 500mb of memory. It is connected to both a satellite dish and saorview ariel and cost me circa €350 (excl. instalation as I was already set up, had a dish etc.).
The machine allows me to watch both Saorview and Satellite tv via the one box. I can record from either Satellite or Saorview, while watching the other, or while watching another satellite tv station. The machine can also do various other things, although I'm not technical enough to get the full benefits.
Overall, I am very happy with the machine and I am happy to recommend the retailer (if you wish).