Kyosho models are excellent, as are Spark; however, I've head mixed results with the others.

As a side note, the Carrera 'Scalectrix' Aeromax is quite nice - you can also buy the Plus 8 part of the set on eBay. Having not owned a Plus 8, I can't say how correct it is but given the quality of the Aeromax, it may be worth a look.

http://cgi.ebay.co.uk/Carrera-Evolution-...=item2eb39e2721

http://cgi.ebay.co.uk/Carrera-Morgan-Plu...=item1e61a1a263