After trying Tiny Miner using the trial I was very impressed with how efficient it was. Its nothing complicated and I found no bugs or problems what so ever.
I bought the TinyMinerPlus and it was delivered within a few hours by email. I added VanGogh on MSN and he was online soon after to help me register my copy and activate the forum account.
Overall I would recommend Tiny Miner because it is simple and gets the job done. The support is also excellent.