G
giraffeheights
Get yourself an Exact saw. They sell them on ebay.
They look a bit gimmicky, but i've seen them in action and they are really quick, plus they have a really neat vacumm attachment for doing it dust less. The blade has a depth stop so even if the tiles have under floor heating the cutter they won't get cut.
Great piece of kit.
Cheers bugs183. will this work with the liquid ceramic grout? cheers.