to be honest, i don't think i5's are necessary in laptops unless you're doing some hardcore encoding or some kind of processor intensive work, like playing low end games. All i5-M's are dual-core HT, which the i3-M's are anways. I have an i5 in my laptop and honestly i'd rather have an i3 as it would probably use less power, and less HEAT. The i5 in my laptop heats up quick, and yes, i'm using a laptop cooler. Also, i feel that 8gb of ram is unnecessary, again unless you're doing some hardcore multi-tasking and have 5 billion things open at once, i have 4gb in my laptop and that is already much more than enough. I currently have Guild Wars 2 open, League of Legends, eight tabs open in mozilla, skype, foobar, msn, all my drivers, and i'm only using 3gb of ram.
If you're in Canada or US (NCIX only ships Canada or US), you could get
http://ncix.com/products/index.php?sku=72597&vpn=K53E-DB31-CA&manufacture=ASUS&promoid=1267
Also, just my biased opinion, i wouldn't get HP or Dell as i've only had bad experiences with their stuff like snapping hinges, dead pixels, flimsy construction (though most stuff sub 700 is probably going to be flimsy to an extent). As for me, i swear by asus. I only use asus motherboards in my computer builds and my current laptop is an asus (U36).