How to select multiple items?? And how much ram can I have

The command key. As for RAM, see the manual that shipped with it or search Mactracker for the info.

Chicago Jimmy wrote:
What key do I hold down to click on multiple items so I can select many items in a folder, non-contiguous, to delete, to copy, or whatever???

hold command

And in this Macbook Pro 17, bought January of 2009, that came with 4gb ram,

your user manual should say that. it should be up to 8GB I believe
http://eshop.macsales.com/shop/memory/AppleMacBook_MacBookPro/Upgrade

how much more can I put in and use? When I am using Fusion and two VM's, things get a bit slowed down.

Thanks!!

Jim in Chicago

Chicago Jimmy wrote:
When I am using Fusion and two VM's, things get a bit slowed down.

Keep an eye on the Activity Monitor (program in the Utilities folder). It may not be memory that's slowing things down, but the processor. Throwing that much work at the mill is bound to make it suffer a bit!

Also, check that you have adequate hard drive space, which can cause slowdowns if it gets tight. Try to keep at least 10 percent free.

Archie

Remember that you can adjust processor and memory allotment with VMWare settings. You can optimize virtual machine performance that way. 4 gigs of ram sounds like plenty. It may help if you close applications in Mac if you are running lots of them.