What sort of umber pc? a 20 zillion GB one by any chance (well maybe not quite that 'umber'). Anyway how do you get emulators like an Amiga one to work on the pc? Do you have to connect an Amiga to it? My dad got rid of all ours yonks ago, when we got our first pc because 1. he said we wouldn't use it again as we didn't need it and the pc games were better. 2. He had recently got a new tele as our other one had gone on the blink which he thought was caused by the Amiga, as we had been running it through our tv. He also didn't want to invest in a monitor for it either. Man how I missed those Amiga's and those games that I used to play on them

. I still miss them now though sometimes

. Parting from them was a big loss, like losing Knightmare

.
I know that, as an Amiga 1200 and Amiga emulator owner, that a fairly meaty PC is needed...about 1Ghz should do.
You don't need an Amiga, but it would have helped...
www.winuae.net and
www.back2roots.org would satisfy most of your Amiga needs, but the big stumbling block is usually how to get one of the 'ROM' files.
Legally, since you don't have an Amiga (what was your Dad thinking, throwing them all away?! Did he not play Sensible Soccer? But I digress.), it would be best to get Amiga Forever 5 from Clotanto (you can find it on Google, if I've spelt it correctly). Illegally, I wouldn't know. I'm a saint, you see.
Eventually, you might get a virtual working Amiga 1200 with OS 3.9 installed, get the Knightmare game of the Knightmare website, only to find it isn't very good. D'oh! Still, there's always Zool...
The best Knightmare game is that Dark Talisman one I've yet to complete (I need to visit Patrick Moore and ask him where the a******* c****** is (just not to ruin other people's enjoyment of it, I've helpfully censored most of this). Shame there's no flashy action sequences though (I expect a lot, I know...)