Droops, you are discovering the joy of upgrades as many of us have. In fact, I wish on three occasions, that I had just gone off to buy a new system.
But don't let that get you down! If you have to buy a new sys - then your exisiting one will do wonderfully well for Ppruning, the net and God Forbid! - even work... Assuming that you are broadband, all you will need is a wireless dongle to talk to a wireless router and away you go... See? Things aren't always as bad as they might seem.... You could end up with less being more.
Conan