We've had a Tomtom in-car satellite navigation system for a while now, and we were using a Toshiba e330. Unfortunately, this doesn't work any more (it always felt flimsy, to be honest). I've replaced it with a Mitac Mio 168, which has a built-in GPS receiver. I ordered it online from www.totalpda.co.uk, and it arrived very promptly, and cost about £270 including delivery. So far, I'm very impressed. The screen is very clear, it works a treat with Tomtom (once you suss how to set up the GPS receiver) and it even comes with a car cradle, USB cable and an exterior GPS antenna, should your car have a heated or heat-reflective windscreen. The unit feels well-made, and seems to work pretty quickly. If you're thinking of giving one a go, I'd recommend this. Because the GPS is built-in, you can also use sat nav on foot, or anywhere you like. Another bonus is that the built-in speaker is pretty loud, so the voice instructions are really clear, even on the motorway. Two Tumbs Up!