Hi shayguitarra,
I also ran Rockbox on my 160GB iPod classic.
It rocks but freeze up occasionally specially when you are using the software equalizers. Try running it plain or stock(it's still pleasing as for me). This could somehow minimize the hangups.
I'm thinking of brewing my own code now but doesn't really know where to start. I hope there are some moderators or any concerned guy whose experiencing the same dilemma.