Shaun, I suffer from osteo-arthritis - both hands, plus fibromyalgia. Anything I use has to be the best option, at least for me, regardless of price.
Compared with the IBM any normal modern membrane keyboard is crap, I've tried enough of them to know the difference. As to modern mechanical ones I'm typing this on a Razor Blackwidow. Seventy Quid worth of keyboard and it's still not as good as my IBM. The IBM Model M is arguably the de-facto best mechanical keyboard ever. These are so good you can still buy them new.
http://www.pckeyboard.com/On to mice, I know what I like and I don't care what it costs. The Asda one works as well as any other I've tried and better than some more expensive ones. Using a top of the range one would have made no difference to my problems. The issue here is in how USB2/3 has been implemented, not the mouse.
I also had a PS2 optical mouse, which I bought some time ago. I finally used that in combination with the IBM keyboard to actually fix the USB issue.
Had I been using a modern USB Keyboard and mouse it would have been practically impossible to sort this out as far as I have done. Windows was not recognising ANY USB port. Try fixing your computer without any mouse or keyboard! What you then have is an expensive brick.
Clock'd, I know, it's just irritating that it doesn't work. I'm going to be moving on to an AMD 6850 within the next week. What I don't want to do is install one of those and find that there are issues that are caused through this. If the intel 4000 series on chip graphics are not working properly, what about the rest of the CPU?