According to Matbe, Western Digital will release on January 3rd a new Raptor model.
This new model, named WD1500AD, will have a storage capacity of 150GB, 16MB of cache and will be compatible with SATA II format.
It will of course be very interesting to analyze if Western Digital has been able to improve the overall performance of the current Raptor models (simply the fastest SATA HDs currently available).
The price should be around 320 Euros.