I use the Innocase Surface with the Innocase Holster and I love it!! I had the same thing for my 8830 and it lasted for the 2 1/2 years I had that phone. Excellent products.
I have the Seidio spring clip.. I feel it is the BEST clip on the market.. the spring clip is well made. i like the felt inside to protect from scratches and it has the sleeper function as well. I love it..and would recommend it to anyone..
I just bought the Seidio at Besy Buy and it is by far the best I have come across. I've had holsters and I've had cases but this is the first holster/case combo I've had and it works perfectly! Extremely well built...