car mounts...suggestions?

Ok...I love the turn by turn nav on the phone.  I've been looking at car mounts out there...and have been a bit skeptical about how the phone gets held in place.  Most mounts "clamp" onto the phone where the camera button is located.  Some clamp on to the side of the phone where the volume rocker and live search/speech to action button is located.  So...forum...pls help with suggestions for a car mount that would maximize the gps nav capabilities.  (plus it helps being a hands free location since new law passed today here in Cali)

wow...did i ever luck out....i bought a colder from radio shack that was on clearance for my zune...it connects to your vent and stays secure...it squeezes onto the sides but has nice cussion...so when i bought the instinct i was wondering whay holder i was gonna get...i got in my car...and tried it the holder that i bought for the zune...it was a perfect fit...i hurried to radio shack because they were about to close and bought the last one...they are only 4.99...check radio shacks in your area....hope you get luck like i did

if you wannt be cheapyou can use alot of duct tape with a slive of carboard on bottom so the adhesive ruining your phone lol but seriously dont try it >.> only bad things can happen from that experiment 

They do make double-sided tape that is made to not leave residue when removed, I would hope that most people know this.

http://www.cliphanger.com/

For those with "difficult" car dashes, this has worked perfectly for me. I've got the full body invisi-shield and the clip hanger attached to the back, hangs off my belt loop and then hangs off my car dash.

how does the grip it work for you ? can you rotate it horizontally so you can use it like a gps nav device?

@ Ramer

You're not afraid the battery cover is going to slide off?  I know they can be difficult to remove but they're on mostly by friction and not by some locking mechanism.