Hey Jase...
I also mod everything... My new wireless headphones have a Red / Green led in the base and two very small Red led's in the headphones.
The base will become Blue / Red and if I can find them mini Blue led's for the headphones.
I might try going to White led's for a change...
The Linksys Router and my 16 port switch I just left, as there are way too many led's to change... besides that they come in a moulded strip which I doubt you could get in blue very easily...
Keep that soldering iron hot dude...