I got a new mobile the other day, the ubiquitous Nokia 3210. I've been having fun with custom ring tones and operator logos; my phone now says "Star Wars" and plays the Imperial March (that's Darth Vader's theme) when it rings. Which is nice. BoltBlue are the only people I've found who will send you operator logos for free (and only one per day!); lots of people will send you cool ring tones, YourMobile has a large selection. I can't believe these people actually charge money for black-and-white icons.