Articles on Lr and SSDs

http://helpx.adobe.com/lightroom/kb/optimize-performance-lightroom.html
http://www.computer-darkroom.com/blog/will-an-ssd-improve-adobe-lightroom-performance/

General Lr performance tips:
http://digital-photography-school.com/10-tips-to-improve-lightrooms-speed-and-performance-without-additional-hardware/