RGB LED to indicate power on and Media Center statuses

[xpsd300]

Hello.

I'm looking to replace the power button LED in my HTPC case with an RGB LED to indicate power on and Media Center statuses using LEDSdriver and the COM header on my motherboard.

Can someone clarify if a common anode (CA) or a common cathode (CC) LED is required if I want it on during POST? The description within the "LEDSdriver now has full-color-LED support" thread states CA, but I've read messages on other sites from LEDSdriver end-users who claim CC LEDs are on by default.

Also, will an RGB LED rated at 20mA max (Kingbright WP154A4SUREQBFZGW) work with the 7-10mA output of the COM header? A minimum current rating is not provided by the LED manufacturer.

Finally, will a diffused RGB LED with a 60° viewing angle be sufficient as an indicator LED? I cannot find a 90° one (5mm through hole) available for purchase from a U.S. vendor. The leds-buy site sells CC RGB LEDs (12-08-02-FC), but there is a 5 EUR minimum order and other fees; so 3 LEDs would need to be purchased at a starting price of 9.74 USD.

Thanks.