Bar Chord Nick, I liked yours a lot as well, you probably could have turned up the rhythm (volume) a bit more, but other than that it was great, it was pretty, as you said, "santana-ish"; To be honest I probably would have approached it the same way you did and kept it with the latin theme;
I was working on making a lead to it as well, sticking in the b scale but I went a little weird w/ the wammy bar and broke my b string! :p Restringing it now :)