In early January I bought this Gateway (Acer) netbook from Future Shop:
Great little thing... N450 CPU, 1 GB RAM, 250GB HDD, b/g/n, 8 hour battery, and all for $350.
The MSI costs more ($430) and has less HDD space (160GB). Sure the extra battery life is nice, but I bet you don't get anywhere near that in real life. My 8 hour battery gives me maybe 6 or 7 watching movies. I bet this gives you maybe 10 or 11 hours in real life.
With the money I saved I'll get an extra battery and still be ahead of the game.