Typing in "site:intel.com virtualization E4600" into google provides these two links:
http://ark.intel.com/products/32242/Intel-Core2-Duo-Processor-E4600-(2M-Cache-2_40-GHz-800-MHz-FSB)
which tells me that your E4600 is a Core2 Duo Desktop processor, and
http://ark.intel.com/VTList.aspx
which, when I clicked on "Intel Core2 Duo Desktop Processor" gave me a list of processors in this class sorted by whether or not they support virtualization.
At this point, selecting the processor is a straightforward matter of matching up what's on that page with what your motherboard supports.
As to actually swapping out the processor when the new one arrives, there are two widely-accepted techniques:
1) Use a static wrist strap and plenty of thermal paste.
2) Buy two processors and use the static wrist strap and thermal paste on the second one after frying the first.
I like your suggestions on how to swap out the CPU:-)) I take it I need to be very very careful of static charge. Have you got any suggestions on how to match up what's on that CPU list with what my motherboard supports? I don't even know how to find out what mode/make my mother board is.
