Back after 6 months and no robots to show for it. In the past few weeks, I called and ran around Ottawa looking for some decent solar cells that weren't enormous and a rip-off. In the end, I gave up on my hometown and ordered from Calgary (none other than Solarbotics). The products available in Ottawa would have been the size of a credit card and output 0.6V, not even close to the 3-3.5V that I was looking for and way too big (not to mention the fact that they would have to be ordered in anyways). Kudos to Solarbotics for not forcing FedEx or UPS on me. I have ordered other stuff online only to find that they don't offer a cheaper/slower shipping solution.