SSD Install Question

So I am thinking of switching out my 250GB 5400 RPM drive this summer for a 256GB SSD, aside from the obvious boot up, app loading speed increases I was wondering would there be any noticeable difference with my fan run speed and heat? Currently my machine can run pretty loud and hot when not really doing much - even loading up firefox to watch netflix causes the fans and heat to kick in.

I can't afford a entirely new machine at the moment, so considering a SSD for performance boost. Lower fan noise and heat will be big added bonus.

(2010 MacBook pro)