best upgrade for out of box (slow laptop)

[seinfeld1123]

hey Toms. I bought an ASUS K53E laptop not long ago.
http://www.asus.com/Notebooks_Ultrabooks/K53E/#specifications
it has an Intel® Core™ i5 2450M/ Processor
4gigs ram. 750gb HDD . I dont have it in front of me.
but It was suggested it had better speed as it had dedicated GFX card ect.
but I found even plugged in using AC its still SLOW arghh.

so the HDD is obv a 5400 rpm and the ram is 1333mhz.
which would you upgrade? I can go 2x4gb ram for $115 and its 1866 C9 ram.
or $78 for a 7200 750gb seagate sata 2.5" drive. which would be the best option if you had to pick one. I'm more productive then a gamer. so I'm leaning to the HDD myself. what do you guys think?

does anyone know of sites that sell better batteries for laptops?

Thx in advance

 

[Konnefke]

RAM upgrade is the easiest thing to do here.
A better hard drive would make boot and loading times, but it won't realy give any performacne boost

 

[seinfeld1123]

the only reason I am thinking HDD. is I was applying all the post SP1 updates it was just taking forever. ram doesn't really impact hat, as looking at performance tab it wasnt fully utilizing all the ram