After-market key FOB?

I'm curious if anyone knows about an after-market key FOB that will work for my 06 Malibu LT. The consensus on the internet (and this site) is that you can't get the programming directions for those things. I can find the part all over the internet for $25, but then the dealer wants $70 to program it. That makes it a pretty stupid investment when the dealer will sell me the programmed part for $85. I called two locksmiths and they said to go to the dealer. Any idea about how to get this done for under $50?