This computer has a similar CPU and less memory, so you should be fine. I'd agree with Jeremy and advise Mint: it's user friendly and not fussy about hardware. The Mate version is probably the best. You can try the live disk, to make sure Mint's happy with your computer and you're happy with Mint, before you install it.
You can install alongside Windows, so that you can chose you OS each time. If you need to do that, defrag your Windows before you start and then you can shrink the Windows partition to make room for Mint. To see how you do that, have a look at
which will also explain how to set up your partitions even if you don't keep Windows.
Mint is here http://linuxmint.com/
and the user guide can be downloaded from