I tried finding some slash between Jayne and Simon and i've only found one author that I think does a really good job with this pairing. :)

http://unitb.slashcity.net/andromeda/firefly.html

I'm so glad I took my brother's recommendation and watched the DVDs. I'm doing my best to spread the word because honestly it wasn't until my brother told me about the show that I heard of it myself. I mean I knew it was out there but never saw any commercials or could find out when it aired on Fox. Thank goodness for DVDs. :)