Good Grief. If you already have an Amiga, ust get your AMD and load up WinXP. Download WinUAE, read a few instructions, use transdisk to get your Amiga OS across and get WinUAE to make you a 512Mb hardfile. Use WinUAE to set up your Amiga as you want it, put your OS disks in the WinUAE floppy drives and format your hardfile and install the OS to it. Enable BSD socket library, download LHA, MUI and AWeb2 off of Aminet, and put these files in a blank directory, and go to WinUAE's harddrive page and add said directory as a hardrive. Use WinRAR or something to extract Lha from the archive into that directory so you can use it to extract the other files.
Each time a program needs certain libraries, just get them off of Aminet and stick 'em in the directory hard drive. Before you know it, you'll be online from your Amiga, downloading RTG, games off of Back to the Roots and appreciating that your PC is much more Amiga than your Amiga ever was, and cost you a fraction of the money.