A 10 minute charge time sounds very fast- only a very select range of batteries will take that kind of charge rate. £200 for a charger is a lot of money. My most expenisve charger cost about $80, and does everything but make the tea. For a simple plug and play charger, a few dollars is all it takes to get a unit that will happily charge your packs everytime.http://www.hobbyking.com/hobbyking/stor ... 2S_3S.html
My Dad finds the menu driven battery chargers a fiddle to operate, so he uses three of these to charge up his lipo packs. I wired them up for him so they are connected to a surplus 12 volts 5A PSU. You can't get a more straightforward system.
Generally lithium batteries should be charged at 1 C (that's one times the capacity). So for instance if you have a 3.0A lipo pack, charging should take about about three and a half hours. Theoretically it should take three hours, but there is some inefficiency in the charging process, so you have to put in a bit more juice than what you take out.
Some lipos can be charged at about 5C, therefore you should be able to charge the pack in about 15 minutes. However these packs are more expensive, and fast charging can sometimes shorten the cycle life of the pack.
Other battery technologies like NiMH can be even slower to charge. Again this can depend on the type of NiMh you choose. Most don't like being fast charged, and you usually charge then at 1/10th C. Therefore charging these means an overnight charge.
As you can see there is a lot to take in. Crossing over from another sector of the hobby, e.g. cars, boats, electric aircraft etc. can help enormously, as much of the technology with batteries motors, chargers etc. is the same. When you come in completely cold, it's a steep learning curve.