Festool

Festool make amazing power tools, i swear by them. I have one of their extractors camped beside my bench into which i can plug my router, sander, jigsaw, circular saw, etc providing brilliant dust removal. The range is huge but everything is designed to be interchangeable wherever possible. The 'Domino' jointing system provides a mortise and tenon scenario in seconds and is a dream when it comes to clamping up. I have two of the 12V Cordless drills for which you can get a vast array of attachments, bits, drivers and chucks. Guide rails allow for pinpoint sawing and routing. All machines come in Systainer boxes which can all stack up, clip together, even get put on the extractor and wheeled to site.

Yes, they are expensive, but you should always spend as much as you can possibly afford on tools. And if you are using machines everyday,  the difference this stuff makes is huge, not just in performance but also in ease, ergonomics, interchange and even health. Clever stuff.

However, they are very well suited to my working practices, which generally involves 80% workshop time and 20% on-site fitting.  If i was drilling into brick walls five days a week, then an 18V Makita would probably be in my toolbag instead.

Toucan Tools is a good place to buy festool (and loads of other good stuff).