I live in a 3G area, and nowadays, I don't notice it much anymore. My dad has a Razr V3 (not 3G) and he does have the buzz. It really isn't a big deal. Just set your phone a foot or two away from your computer, and you shouldn't have a problem. Or, if it really bothers you, you could put your phone in airplane mode. Beyond that, I would say try a GSM phone (T-mobile or AT&T) and if it bothers you, you can trade it back in within 30 days.
How big is this problem really. It seems everyone with gsm phone has this issue. Buzzing is heard around computer speakers, av systems, home entertainment systems, etc. I have done some research and have concluded there are several solutions to this problem besides having all cellphone manufacturers solve this problem by developing phones with substantial shielding to prevent this rf interference. Or, having all manufacturers of speakers equipment create products with sufficient shielding to block this interference. Now, 3g phones do not have this problem but how long will it be before 3g is ubiquitous. Too long. So, phone will shift down to 2g when there is no 3g coverage and hence the buzzing will continue.
A couple of soutions:
1. Attach ferrite beads to the speaker wires of the affected speakers.
2. Drink a can of Red bull and cut and fashion the can into an aluminum shield.
3. A website called www.stopthebuzzin.com has a product that seems too simple and easy to implement. Video on website show the effectiveness and is a little humorous.
How much longer will the madness prevail.
Let me know how many people think this continues to be a problem. From all the buzzing coming from my office I would say it is still a serious problem that needs a soulution or the phone companies need to step up and solve it.