ok so my uncle bought me a working compaq armada sb laptop from a thrift store for 6 dollars he tested it and cleaned it and it has a 3gig hard drive in it but no os i did some googling and found it came with windows 3.11 since im not so tech save whats a decent size ide hard drive i can put in to install windows 3.11 on id like to go at least 20 gigs as i have lots of old dos games to put on the pc to tinker with for fun so help me chose a hard drive thanks oh and the laptop has a pentium 1 mmx 200 MHz and 96 megs ram max and a floppy drive no cd rom