All handlebars are the same size EXCEPT for the Goldwing and HD's. When you buy your grips, it'll specify if it's for one of those. But make sure you don't get a kit for ATV's. That kit won't fit over your throttle tube.
As far as I remember, the Fireblade has a 450W alternator. That's more than enough for heated grips, heated jacket, and pants. The most I really see for grips is around 60W during startup, then from 15-40 depending on temperature desired.
I use this set here:
http://www.louis.de/_4025db4fc1b0ff2..._gr=10 032048
And it works good. I had the same exact kit on my old RC, and never had any problems for 20000 miles.
Just remember before you can install the RHS, you have to cut/trim a plastic lip off the throttle tube or the grip can only go on about 85% of the way.
For grip glue, just find a can of the cheapest, stickest hairspray you can find.