But I would like to suggest a few more things to add there, if possible and when you, DC, don't have anything to do and have will for it.
1. Add a YouTube fied, just like the Facebook and Twitter fields. For example, I put there my account name which is "RodrigoXtr3m3" and it will link to http://youtube.com/RodrigoXtr3m3.
2. Add a Steam field, this is really popular and lots of people could add themselves as friends and stuff.
3. Re-add the annotations (as I discussed in another, now closed, thread). With BBCode support of course.
4. Make the signature field bigger, instead of just a line, which makes it harder to people manage their signatures.
5. Real name field; of course optional, because lots of people want to keep their privacy, but some of them, like me, may want to tell it (my nickname actually contains my name o_O) so they can call each other (outside threads to avoid confusion ofc) by their names (in PMs, IRC, etc.).
6. Brithdate field: a field where you can put your day, mouth and year of birth (make the year optional, so people can just have Day/Mouth in case they want) so everyone could know when is their friends birthdays (oh, and you should make a "no Happy Birthday threads" rule below that field). When the Newsletter feature (can't wait!) that you planned is a released, a special brithdayletter would be cool!
That's it, for now.
DC, please take in consideration this list and don't rush things out, add each feature calmly when you have time and patience.
Feedback is appreciated, and remember: these are just minor suggestions to make the profile even more complete and perfect (I'm a perfectionist)
Thanks!