My best friend sent me a skein of boucle for Christmas a while ago, and I only recently worked it up... the fuzziness that's so appealing in the skein is murder on your eyes and patience when it's on your hook!
However, I just got a Crochet Lite http://www.joann.com/joann/catalog.jsp?CATID=cat2873&PRODID=prd58617 hook, and it's WONDERFUL for yarns where stiches are hard to see! Since the hook itself lights up, you can use it to backlight the yarn and find each stich you need!
The only heads-up you need is that the lighted hook portion is plastic, so 1) it may feel "squeaky" with certain yarns if you crochet tightly, so try to keep it a little more relaxed than with a metal hook, and 2) if you push or pull too hard while crocheting (hey! I said keep it loose!) you can cause stress fractures in the plastic, which could eventually cause it to break.
Aside from that (and you'll always use it gently from now on, right? Right?) it's the very best way I've found to work up all the fun textured yarns without getting frustrated and tossing a partially-finished project to the bottom of my WIP basket