First of all that sample in the first 30 seconds or so almost made me want to quit, really hard on the ears - what is that? Sounds like a radio dial being attacked by a dentist's drill
Pretty cool after that, I really bought into the drum change at 2:28, thought that flowed really well - nicely done.
Have to agree about that "radio-dial" noise at the beginning. In headphones it gets annoying, but then again, it does make this tune different for sure.
Nice change at the :55 mark. I'm not real familiar with this type of music for the most part, but once it got going (past that first sample) it is pretty cool. I like some of the sounds you are using in there. I can see this being put to good use either in a video game or possibly a movie soundtrack.