I switch to a mac about 6 weeks, ago. Here’s my thoughts about the pro’s and cons of my experience.

Pro’s

• Fast boot / reboot times - No more waiting 2-3 minutes to boot up!
• Better memory management - I run my firefox with 15 open tabs and  zillon of  applications and it handles it fine. (Memory usage for dashboard is a little scary)
• Front row - Brilliant when traveling
• iPhoto - nice integration with front row
• Keynote is awesome. Runs rings around powerpoint
• Parallels is great. Boots faster than my old laptop !

Con’s

• No being able to tab into application windows. eg If I am writing an email, if I tab away I can’t tab back to the open email.
• File copying. Copying files deletes directories then copies files rather than replacing the files. Got bitten by this big time.
• iPhoto not having real picture resizing built in
• Finder not having a thumbnail browse..

I’m really glad that I have switched. I’ll wait a bit before I install Leopard.