Looking for Don gen, Don/Charlie & David/Colby recs

[allaire.livejournal.com]

I'm looking for two, no, make that three different types of Numb3rs fic.

1. Long, detailed, well-written gen stories, preferably Don-centric.
2. Don/Charlie slash stories that you'd recommend.
3. David/Colby slash fic set post-episode 4x01 "Trust Metric" that deal with either them coming together for the first time after the events of the season cliffhanger, or mend their relationship after the perceived betrayal of trust.

Any recommendations? I'm in the mood for Numb3rs fanfic, but my own searches had rather unsatisfying results.

Thanks so much!