Please give me your opinion

If I were given this option, I'd go with no, only because I've formed an attachment with my macbook.

However, all the specs on the computers can be upgraded, so if you do choose to make the trade, you can upgrade the memory & ram to your liking, just not the processor speed. If you take an in depth look at the differences between the core duo and the core 2 duo, you might see some that are things you wouldn't want to live without. I've heard that the c2d have the new 802.11n capabilities, while the cd do not. Just something more to take into consideration.

Personally, I also like the 13.3 inch screen of my macbook (hence why I like it so much) better than the other size screens of other notebooks.

When I first wanted to get a mac, I was looking at the MBP's, but then I saw the macbooks and my mind was set.

It is true that your gaming experience and other graphic intensive programs will be better on the mbp, but honestly... I haven't come across anything that runs poorly on my macbook. So... I'd have to go with a no on the trade.

Just my $.02

i also belive that the core 2 duo are fully 64bit archutecture where the core duos are still 32bit. may make a difference with leopard

Why would you trade for a lower version of a laptop? There's a huge difference between the Core Duo and the Core 2 Duo. I would keep your current laptop if I were you.

deltatux

tell him to bring the ram up to 1 gig min and do it.