I went with the 600m as well. I will be receiving it in a week or two, as soon as I do, I'll let you know what I think
Good luck finding the best price, like I said it fluctuates to much, you never know if you are getting the best deal! I purchased mine for $1234.95 but that only has 256k memory because my dad has another memory card that he will add for me and it includes the price of a laptop carrying backpack!
I feel like I got a great deal even though had I purchased it today it would be $41 less...I think I'm going to have to get over the extra 41 bucks I paid...LOL
If you have any questions about it though, don't hesitate to ask me...I literally have spent since May researching laptops and especially prices!!