Ah, this topic is substantially less lame than most have been lately. Useless, yes, but interesting.3 on the monitor (HD15/BNC indicator, power indicator)
11 on the DTT2500 amp (music, movie, fourpoint, stereo, dolby digital, prologic dig in, prologic analog in, left only, right only, power, mute)
1 on my floppy
2 on my dvd
1 on my cd-r
4 on my nic (link, activity, 100mbit, full duplex)
0 on my keyboard (it's wireless)
0 on my mouse
9 on my usb hub (power, 4[two per port])
4 on my printer (power, paper, black, color)
1 on my scanner (power)
16 on my switch (power, 5[link, 100mbit, fdx])
4 on my modem (power, carrier, off hook, data)
Plus a bunch more on my fileserver, which has a floppy, cdrom, nic, and wired keyboard. Yeah, I'm inundated with LEDs.