My friend.....you can add in internal Laptop Harddrive up to 80Gigabytes and more!
You can also add an internal Faster processor for up to 32mb and Even a USB card! and a Wirless PCMCIA card that laptops use. underneath there is a door to add an extra Megabyte of Video Memory called ChipRAM.
as far as Games? your in heaven buddy! go to Back2Roots.org and download your behind off!
Oh.and yes there are drivers for the HP printer as well as WordProcessor.........Final Writer and Amiga Writer and WordWorth are the Good ones.
Go here to See a fully upgraded (Almost) Amiga 600
http://www.amiga600.de/