D2moto.com has their SHawk integrated LED tail light on sale for $29.99. I paid slightly less than this about 6 months ago but I think normally they sell for about $70 (even though it says $85). I will say the install on these is a little tricky and the don't come with instructions but me and a buddy got mine figured out and it works great.

http://www.d2moto.com/p-5013-1997-20...t-signals.aspx

Here's a video of mine:

http://www.youtube.com/watch?v=xSDLPI4iGTs