Lots of stuff on the OpenPilot UAV project.
A nice kiwi guy who seems to really know his stuff. Has a YouTube channel with lots of interesting reviews & intro info. No quadcopters, but lots of FPV and semi-UAV stuff.
Nice quadcopter frame kit, supposedly for sale.
Chris Anderson's Arduino based UAV controllers. Available from SparkFun.
$150, see also KK Multicopter multicontroller v5.5 "Blackboard", an Australian site selling bits and pieces for tri- and quadcopters.
Nice looking tri-copter kit. Based on http://rcexplorer.se/files/c491d4d39b11fa085e8aa678aa4c9a3b-244.html
RC flight simulator for radio controlled models. Flying bit runs ok under wine, no dialog boxes work properly though unless you "Emulate a virtual desktop". Demo is limited to 2 planes (and a heli) and 15min flight time.
I just finished building a 12V DC power supply for my LiPo charger by following along with these two articles:
I bought the HobbyKing ECO8 charger from HobbyKing, assuming I'd have a suitable wall-wart lying around. After looking around a bit, I realised I probably didn't have any that were going to source 2A+ required to charge LiPos, so I figured I'd try the computer power supply conversion, which is a project I'd considered before when playing around with microcontrollers. I decided to skip the 5V output to keep it simple, I can always build another to get the full "bench power supply" version.
The ATX power supply was lying around, the bits I added were (from JayCar):
And 4 little screws to mount the guard on the fan, a couple of cable ties, some thermal grease.
Do this at your own risk, mains power is dangerous etc.
The inside, fairly neat:
Front panel (was the back), fan mounted on top.
Testing the output voltage:
Plugging in the LiPo charger (plug it in first, then switch on power), it booted up and works:
I've yet to test it under high-load (e.g. charging a LiPo battery), fingers crossed it'll all hold up.
The power supply worked perfectly while charging two 3S1P 2200mAh LiPo packs. Stayed nice and cool and no explosions!