As Managing director of my own computer repair, installation and hardware company I have some little tips for you.

Tip 1: try and build up a customer base within a local area so that you can get aftercare on systems you sell.

Tip 2: Dont try and sell new systems, there is no profit. Instead sell old(ish) systems at low prices, because all the regular user wants them for is to go online etc... If they are a pro they will already know where to get a cheap and decent machine. Plus you have a better chance of getting aftercare from a regular user than a pro, as a pro will fix his own problems.

I like the idea of your trojan and virus removal, simple quick and easy for us that know how but, for a regular user it renders the machine unusable.

The training sessions im not s sure about, why bother when you could earn more doing an installation or something similar.

I know of people that charge £100 to install XP on a system... just think, it takes about an hour and you can be doing something else in the mean time... you could just sit around a drink beer for an hour and its a good days pay for a 1 hour install!

Anyhow, thats just my 2 cents... good luck, live long and.. repair pcs! =P