My current dilemma is if I should upgrade my 15' MBP 2.33 to the newest 15' MBP 2.5 or MP (2) Quad 2.8 ghz. Currently my 2.33 MBP is stock and has just ran out of apple initial warranty without applecare extension but has worked flawlessly so far. My question is, could I sell this laptop for at least $1200-1400 if I include a wireless keyboard and wireless mighty mouse? Now, If I do attempt to sell the 2.33 MBP for $1200-1400. I could obtain a brand new 2.5 MBP for $2100 or should I shell out more cash for the (2) 2.8 Quad MP at $2550 on amazon? Now, my daily usage includes surfing, emailing, coding (php+css), and moderate graphic work. I have already purchased a NEC LCD2490WUXi-BK Black 24.1 for $1200 and would like to eventually go dual setup. Would the MP be more logical if my intentions were to keep the system for 3+ years compared to the MBP 2.5 or keep my current setup? I appreciate whomever that made it through my incoherent ADHD attempt to write a comprehend-able questionnaire and look forward to some positive opinions.