Thanks for the responses! I actually broke down and just ordered the Shure SCL4s. At the price of $80 I just couldn't resist with savings at around half! Hopefully I've made the right choice. If not, these should have great resale value in the near future as others have pointed out on these...

Hm... Maybe no one has listened to both yet?

I've been lurking these forums for the past couple days, attempting to replace my cx300s with some higher quality IEMs. My budget is pretty much up to $100 (can go over slightly), and I thought that I had settled on the UM1s as they generally received praise all around, but now I notice the buzz...