I would like everyones opinion on this subject and why if posible.

Okay, I have a 95' B16a3 motor in my sol with 52k miles on it. Now, Should i Trade in my motor +100 bucks for a 99' 00' B20 motor with 30-40k on it? Also i would be using my b16 Tranny and getting a Skunk2 IM and using a LS exhaust manifold. Its done professionaly also at a shop, so no ghetto riggin. What are the pros and cons on this swap?