Help! Is this a good deal?

[MikeinLA]

Hi all. I really need your collective wisdom. I just found a 2005 CPO Boxster S on a dealer lot with 9,100 miles. Asking is $ 49,900 but I think I can get it for $ 45,000. It is the custom GT Silver Metallic, full leather, Nav, remote CD, 19" Carrera S wheels, sport seats, Xenon, Bose & sport shifter. Original window sticker was $ 68,485. The car is PERFECT. CPO warrantee will give me 49 more months or 91,000 miles. I am currently blinded by love and need to know if this is a good deal in your opinion. It just hit the lot and may be gone by morning, so I think I need to act quickly. Your thoughts?

Thanks, Mike