Hi Resi,
I commuted by bike throughout the winter last year (hoping to again this year!) and it took me some time to find a glove I liked.
For temps above 47 or so but still too cool for fingerless gloves, I have a pair of Terry full-finger bike gloves that I really like. These are the ones:
http://www.teamestrogen.com/products.asp?pID=14148
For temps between 30/35 and 50, I found I was comfortable in a non-bike specific glove made of Polartec Powerstretch Windpro fabric. Fleecy on the inside, super thin and flexible, somewhat wind resistant if the wind is not frigid. Here's the pair I have actually:
http://www.ems.com/catalog/product_d...=1187619992454
For colder weather, I had a really hard time finding something that was adequately windproof and insulating, but didn't feel like boxing glove. I have to say I tried on most of the bike-specific gloves (PI and so on) and felt they were too clumsy. Here's what I ended up with -- it's a springweight ski/ice-climbing glove:
http://www.mountaingear.com/pages/pr...4967276%201064
I'm actually quite happy with them. They're good alone down to 20F or thereabouts (maybe a tad colder), for anything colder I wear a light/midweight polypro liner underneath (this combo worked for me down to about 10 deg last winter. The two days colder than that, I drove

). I find them plenty flexible/non-bulky, so shifting/braking is comfortable. They block the wind well, and the adjustable cuff makes dealing with various layers (base/mid layers with thumbholes, glove liners, jacket, etc) much easier.
Good luck finding something you like! I think glove preferences are a bit more personal than one might think -- for instance I just can't stand anything even slightly bulky, but others may not mind this.