Hmm, well I see that most of the colored/lighted fans are 80mm fans, so that really narrows down the options. Not so many heatsinks are made for 80mm fans. Of the ones that are, probably the best bet is the Thermalright SK-7, a nice all-copper unit that goes for around $20 (fan not included). Pick the 80mm fan that you like best, and there you go. It's a fantastic performer too.
The 80mm fan does hang over the edges of the SK-7, so it may look a bit "top-heavy." At any rate,
http://www.svc.com is a popular place for getting the lighted fans and Thermalright sinks, and they carry thermal compound too. The SK-7 does come with some thermal compound but I like to know that I'm using top-quality compound, so I'd get the Arctic Alumina or one of the other Arctic types, if it were me.
One other note if you do get an SK-7: it can slide back and forth on its clip. One end of the clip has no screwdriver-tip receptacle, and this would go at the left on your board. Get that end hooked on the CPU socket, then slide the heatsink to the left until it hits the clip, before latching down the other side of the clip. This prevents the situation shown in Figure 14 of this
guide, which would overheat your CPU.