Ok, need hotel recommendations in Prague if possible?

Gotta book 1 room in a reasonably priced but nice hotel and 1 room in a posh place, reasonably central

Wouldn´t mind but im not a fooking P.A.

Currently trawling the net but its like looking for a needle in a haystack as i´ve never been myself.

Ps: Whats the name of the airport nearest Prague?

Any help would be gratefully recieved as I really cant be arsed to spend my afternoon looking at hotels that I wont be travelling to

Pps: Whats the name of the currency there, wouldn´t believe this guy is an ex-Stock Broker and he cant tell me that