You do not want to swap HDD's in the vpr on a regular basis. It is a tedious chore (17 or so screws, three of which are under the keyboard... a few fragile connectors to be removed, splitting the case, etc...) to disassemble and reassemble the 185A5/200A5/220A5. Believe me ... I've had mine apart a few times. Put a Windows partition on a common HDD and dual boot.
If you want much better performance from the IDE on the VPR get a Toshiba MK-6022GAX... 60 Gig with 16MB buffer vice 40 GB with 2 MB buffer stock. I'd put a FAT32 partition on the drive if you need. Here are the hdparm results:
hermes:/home/eherr# hdparm -Tt /dev/hda
/dev/hda:
Timing buffer-cache reads: 1184 MB in 2.01 seconds = 590.02 MB/sec
Timing buffered disk reads: 58 MB in 3.11 seconds = 18.67 MB/sec
The 220A5 has a mini-PCI slot available for wireless. Get a Xterasys XG-600 802.11g mini-PCI. Don't bother with an Atheros chipset based card... the VPR BIOS does not like. The XG-600 has a good Linux driver available at
http://prism54.org .
Good luck.