Leytond mate, listen the best option for you would be to buy a Compact Flash card, Compact Flash card IDE adapter and download Classic WB
Classic WB this will save you money and time. Classic WB is free and it does pretty much all the things that your Windows XP does or all that can be expected for a computer of its age. In the end of the day - your better off first with Classic WB as it has a lot stuff installed including software which Amiga OS 3.5 doesn`t have. Installing Classic WB is piss easy as long as you buy a 15 quid Compact Flash kit from AmigaKit.com. Trust me on this.