For in the car I really like the Blackhawk QCQ (Like the follwing but w/o the carbon fiber. Stay away from the carbon fiber). The only thing that I don't like is that you use your trigger finger to release the retention device, wich then causes your trigger finger to fall into the trigger guard. I find that if I pushdown on the pistol while drawing, this problem goes away... I don't know why.
This one also sticks out a little bit far for some situations.
http://www.blackhawk.com/product_detail ... id=4333&d=
The Bianchi is also a retention holster. It uses the middle finger to release the retention device. This works very well, and is very natural. It also conceals a good deal better.
http://www.bianchi-intl.com/product/Pro ... ModelID=82
The following Don Hume is what I use for IWB. This is the holster that I have used the longest. I like it the best of the many IWBs that I have. It works well at 3 o'clock, other wise the end of the grip sticks out a good deal if you bend over or turn even a little. Cant it forward a little and it works great. Very good for its value.
link
I felt that the XD in thunderwear stuck out too much, but my pants may have been to tight. Several people commented that pleated pants work well.
http://www.thunderwear.com/