I've been conducting English lessons via skype for over two years now with great success. For some reason people seem to have an easier time learning new information when they are relaxed in their own home just using their computer.
60 minute lesson is €12
5 lessons is €50
All you need is a webcam and mic. All materials can be shared electronically.
If your interested contact Jackb45(at)Hotmail(dot)co(dot)uk <- just replace the at and the dots with the real thing and your away to go