I have the 10v and used the Gizmodo upgrade for 10v/Snow Leopard (not the Mini 9 link). Mine went fine. Check your BIOS (mine was A05 so I didn't flash; if it A06, you need to flash). NBI 0.8.3rc4 is the new bootstrap that covers the SN 10.6.2. When you first load SN to install, it tells you the disk isn't formatted properly...follow the Gizmodo instruction within the install itself. You will use the drop down menus until the disk is formated; then you will just follow the normal steps like any other install.
Once you are up and running, test your audio and mouse...they should work. When you upgrade Snow Leopard to 10.6.2, your audio and mouse may not work. The solution is to run NBI 0.8.3.rc4 again. You just load the app, click the boxes you want, run the app, and then reboot. Now your audio and mouse work like they should again. The whole process should be 2-3 hours, including upgrades.
I don't know about the 2gb RAM...I have read that performance isn't that different between the two from some and others seem to say it is useful. It seems that the RAM may not be as much of a bottleneck as the HHD: many seem to report better performance from an SSD
. I would like to hear your thoughts if you do the upgrade!
One item that I would like to have is the Bluetooth adapter: I think using the Magic Mouse would be very nice to create a true "Mac" feel.
Cheers and I hope you have as easy time with your project as I have!