Apple now allows you to buy ringtones directly through iTunes. Unfortunately you have to buy the song first, and then pay another 99 cents to convert it into a ringtone, but only songs in your library with the Ringtone symbol will work.

Can I get free ringtones for my iPhone
Kind of. Any song in your iTunes [...]

$299 Apple iPhones While Supplies Last
Those of you waiting for the price to drop even more on the iPhone have no excuse, while supplies last you can get a 4GB iPhone for $299.
How do I Unlock the iPhone
While we have not done this, credible sources have, but proceed at your own risk. Some people have [...]

With 8 hours left until the iPhone is released, we thought we fill your appetite for iPhone related news.

iPhone Activation and Sync
iPhone Accessories
Tour of the iPhone
The iPhone Challenge: Keep It Quiet

First iPhone Camper Smelled at Apple Store - iLoser
iLoser Retains Place in Line, Crisis Averted

The iPhone goes on sale this Friday, June 29 at 6PM and iPhone fans are already camping out at stores nationwide. The Fashion Valley store is supposed to already have a few iPhone campers out in front.
First hand sources at both AT&T Stores and Apple Stores tell us that Apple Stores will close Friday [...]

Apple iPhone coming June 29th. To get your hands on one, you will have to pony up $499 (4GBs) to $599 (8GBs), and sign a new 2 year agreement with AT&T. I’ve been really happy with T-Mobile for the past 2 years, but I’m switching to AT&T on the 29th.
Countdown begins: 25 days. [...]