I have a Compaq Presario 2100 Laptop (2143EA to be precise) It currently has an 802.11b Wireless adapter installed in the internal mini-PCI slot. Since the rest of my network is 802.11g based I have had to buy an 802.11g cardbus adapter so the laptop can reap the benefits of the highspeed network and also so it doesnt slow down the rest of the network.
I was wondering if it would be possible to buy an 802.11g mini-PCI adapter and install it myself?
I cant think of why there would be a problem doing this but before I waste a lot of money and end up breaking my laptop I thought I would ask here first

the reason I want to do this is because I hate the damn Cardbus adapter poking out of the side of my laptop.
My uncle also has a similar laptop, compaq presario 2100 (2113EA this time), could I put the old mini-PCI adapter out of my machine into his? his currently has no adapter but the bay is present, this would make things a lot easier if I ever need to take something to his house.