I bought the basic Dremel 3000 on offer for around £25 a few months back for messing around with 2 stroke engines and porting (My son's first bike and I have about 5 engines to mess around with
). I've not needed full power/speed as yet but it has ample for anything DIY around the house
eBay accessory kits are surprisingly good value, but I have to say the Tungsten carbide burrs i bought are my favourite accessory to date, chew through aluminium with ease