i use a fox carp rod, cant remember the model but its 3.5lb t.c. and i love it for heavy spinning and float fishing.
The length gives you better control, but i do have my ron thompson 10ft (again cant rememeber the mode)l, for my main spinning and light floating and stuff. Its a bit battered and feeling sorry for itself now though... may invest in a new one... i fancy the sk4, my mate has wont, beautiful rod like, long cast on it too, extra 20yard over my ron T, same line same lure ect.
But i think carp rods are fine for what you want the use out of it for mate, speaking from personal use aswell, i was suprised by the backbone in it