Case Art's FireFlies
 

Lighting up your case is the most common mod done today, it's a fairly standard thing for people to have LED fans and Cold Cathodes in their case, but every once in a while something new and unique becomes available to the market. Case Art's Fireflies are the smallest lighting mod's available and don't let their size fool you, they are extremely eye catching!

Review Link: http://www.ozcasemodz.com/reviews.php?load=review&id=2

simple but nice

simple but expensive:D