I haven't really found anything that is as specific as Strobist 101 and 102. The books that I have relating to light are:
- http://www.amazon.co.uk/Light-Scien...=sr_1_1?ie=UTF8&s=books&qid=1221660367&sr=8-1
- http://www.amazon.co.uk/Moment-Clicks-Photography-Secrets-Shooters/dp/0321544080/ref=pd_sim_b_2
- http://www.amazon.co.uk/Master-Ligh...=sr_1_5?ie=UTF8&s=books&qid=1221660403&sr=1-5
There's a recommended reading list on Strobist and if you want more practical advice he's released a DVD. I've not seen it but it's 8 DVDs for about £80-£90 I think. I'd imagine it's a good watch.
I can confirm that I ended up paying £130 after shipping and duty fpr the DVDs