no problem, glad i could help. the little yak in the video is very cool indeed, its certainly reproduceable, but it can get costly when it starts getting this small.
Blue Arrow makes some standard cased servos that are pretty light at 2.5 grams and higher, Falcon makes a micro servo that weighs 1.6 grams, and now
there are new muscle wire servos that weigh only .8 grams (HS55s come in around 8 grams or so). there's also lightweight brushless single cell and two cell
ESCs, RXs, and of course micro brushless motors (ranging from 1.5 grams to 8 grams). you can get just about everything above from these sites below:

http://www.bsdmicrorc.com/
http://www.indoorflyer.co.uk/index.asp

both companies are very good to do business with, indoor flyer is overseas, but his shipping is fast and his prices are good.

nick