Best mouse and keyboard?

Undoubtedly the question has been asked before, sorry to ask again but, what mice and keyboards are you guys using? And what would you recommend?

Seeing as both my mouse and keyboard were cheap Logitech ones that are starting to give out i'm looking to replace both.

For mice I've been looking at the Steelseries Sensai and the Razer Deathadder and for keyboards I've been looking at the Razer Blackwidow. I play a quite a bit of everything, shooters, rpgs, mobas, ect.

As a side note I'd like to buy a headset as well and was curious as to what might be out there for under $180 or so.

Thanks in advance for the help.