Welcome to here. Where about are you from, in the UK?
I have no idea about emulating the Amiga. I own a PC and an Amiga so have no need to. If you want to use the Amiga seriously get an AmigaOne, I ordered one yesterday. if all you want to do is play old games, then I`d just find an A1200/A500 (depending on the age of the games) somewhere and get a HD (for the A1200).