Which firmware for first generation iPhone

If you're wondering which firmware to use for your iPhone and where to get it when moving to 2.0, here they are:

First Generation iPhone (no 3G) - Download iPhone1,1_2.0_5A347_Restore.ipsw firmware
Second Generation iPhone (has 3G) - Download iPhone1,2_2.0_5A347_Restore.ipsw firmware

NOTE: These are the official firmware downloads from Apple. The servers are part of the Akamai Edge Suite, which is a content distribution network.