A guy at work has offered to buy my Hornet so my chance has come to finally get a 'Storm

Hopefully I'll be out shopping for one in a few days time.
Apart from the CTC and water leaks, is there anything I should be looking out for on the older models (apart from the usual you'd check out on any bike) ?
Also, what are the tyres of choice for all round use? My commute to work is 25 miles of fast A road and 50 miles of the M4 (yawn) - I only do it one or two days a week but it takes up a good proportion of the mileage that I cover.
All advice much appreciated !
Cheers
John