You should only make modification that you are comfortable making (comfortable in terms of techinal saavy as well as comfortable in terms of risk tolerance). But the opinion of this stranger is yes, the benefit in performance is going to be very noticable. I've been actively following the overclocking thread since it was only a few pages long and have been running an overclocked device myself since that time. I have yet to hear any reports of anyone having any real negative consequences. Just make sure you run with the factory kernel for a while first, for the sake of comparison, so that you properly appreciate the improvements when you finally do make the leap