I'm a wool convert. I refuse to wear shirts or socks that aren't wool now.
Shorts are another issue. I'm sticking with standard bike shorts. One of the advantages of wool jersey/socks is that I don't have to wash them that often. I would, however, want to wash the shorts every day. Wool just wouldn't hold up as long. I'm sure I'd still like them better, just can't justify the expense since I already have other shorts.
I've got a mix of ibex, smartwool and icebreaker. Smartwool is lower quality, but it's considerably cheaper as well.
BTW, don't get sucked into the Ibex sales. A froogle search will generally turn up prices as good or better than their sale prices - without waiting for a sale.