2nd blue wire I pulled was the right one! Thanks to cordless phones so I didn't have to go up and down 2 flights of stairs to check for the dial-tone. Oh, shame on me for assuming the pair of orange wires next to the correct blue ones belonged to the same cable... Not bad, I only had to put 3 wires back into the bus. All of our phones go through the same wireless base, and that still works, yay.
Wired infrastructure is all in place: Tomatofied router (thanks adam for the tweet about installing tomato at work, I read it right at my peak of frustration with openWRT), 2 5-port switches, and the old wireless router set in access point mode. Now I'm just waiting on my order of patch cables so I can hook everything up.
QTY PartNumber Product Price Ext. Price
10 109-308 Belkin Cat 5e 7 ft. Gray Patch Cable Snagless $0.98 $9.80
5 109-353 Belkin Fast Cat 5e 3 ft. Black Patch Cable Snagless $0.88 $4.40
1 109-468 Belkin Cat 6 14 ft. Black Patch Cable Snagless $3.78 $3.78
1 109-521 Belkin Cat 6 50 ft. Black Patch Cable Snagless $6.18 $6.18
1 FedEx Home Delivery $9.99 $9.99
all these cables for $24, I LOVE PARTS EXPRESS!