I use a Black Rapid clone from eBay... This one:
Light & Quick Shoulder Belt Strap for SLR DSLR Camera | eBay
It's $14, good quality, comfortable, and unlike the genuine Black Rapid strap, you can use a tripod while the attachment is screwed into the camera. Also, the carabiner that fastens to the screw attachment, screws down to lock it to the attachment. Another improvement over the real thing... I have two. One for each camera body. Love 'em.
My wife has the Op/Tech USA EZ Comfort strap. It's a good, comfortable strap, but if you're using big heavy lenses, I prefer the Black Rapid clone. (She does too.) It distributes the weight better.
The Black Rapid-style strap won't fray around the strap lugs on your camera, either.
I use a bag similar to a Lowepro Slingshot, but I guess I haven't had the bag on at the same time as the strap. When I'm doing wildlife shooting I usually use only one lens on the camera & only wear a small sidepack for lens cleaning stuff & batteries. I'll have to try both on at the same time & get back to you.
Cheers,
Bobbo :-)
Last edited by GibbyTheMole; 04-09-2011 at 04:56 AM.