Ear Buds? Any good recommendations under $100?

I have the klipsch s4 buds. These fit in the ears and seal easily and securely, and are very solid performers and a very good value I would say. The tight seal may take some time to get used to but I have no problem falling asleep with these in these days although they were a tad uncomfortable to leave in at first. Also the cord is highly microphonic so perhaps not the best choice to listen to if in motion.

because i (or the kids) lose or destroy everything portable, i've stopped buying expensive earphones, watches, eyeglasses, etc. ergo, after cycling through shure, denon, etc. i got some skullcandy titan ($20 on amazon), and i tell ya, they're damn good. dynamic, very efficient, good tight bass response. not the ultimate in high end detail, but for listening to mp3 files they're great, esp. considering they're $20. the $50 klipsch s4 do (expectedly) sound a little better, but are as above stated a tad uncomfortable.

Better "Skull Candy " line.

Audeo PFE 011s.

I have the Sennheiser 300i that was previously and can be found for a great price online a lot. My wife has the nose and they are great as well. Also consider the entry level grad.