Oh, you are a woman after my own heart. I read this hoping there was a secret stash of Don fic somewhere and someone would point you to it, but no luck. I have a few stories on my delicious, here: http://delicious.com/poilass/numb3rs (but! not all are recs, some are things I haven't got around to reading yet). There are a few gen stories and some Don/NOTCHARLIE slash stories, but sadly there is not very much anywhere. I don't understand it, myself.