I was wondering if it is possible to upgrade the CPU on my Dell
Inspiron 6000. It 1 year old so I don't have to worry about warranties
or anything
Here are my specs:

1.6Ghz Pentium M
1GB RAM
80Gb HDD
128MB Video Card

So its a nice rig thats plays a lot of decent games. I looked up how
to replace the CPU, and it's fairly simple. It is socketed in a ZIF
socket (?) What processor would I have to buy to upgrade? Is it
possible to put in a Dual Core? For the upgrade to be worth it, it
should be a processor that runs at least 2Ghz. Also, would I need a
new heat sink then?

Please help