Tyres for a Firestorm?

I ride a 1998 Honda Firestorm which is mint (5000 miles) and the suspension is fully sorted which transforms the bike to what it should have been.

But now the bike could do with more modern tyres to replace the old BT010s. I ride from legal speeds to countryside burn ups and would like a balance of reasonable grip, mileage and value. Conti Motion are a tyre I was considering but I would first like any advice?

Get yours at MCNshop.com