Acer Aspire 5002WLMI

[ruc]

I want to buy a notebook Acer 5002WLMI and I found on the internet two configurations for it:
http://www.circuitcity.com/ssm/Acer-Aspire-Notebook-PC-5002WLMI-/sem/rpsm/oid/127526/rpem/ccd/productDetail.do
and
http://www.cdw.com/shop/products/default.aspx?edc=773541
The differences are at the hard disk (100 GB/80GB and at the RAM 1Gb/512 Mb).
I searched on cnet.com and I found out that here it is presented only the second configuration. But the buyers opinion was only about the first better configuration (saying that theirs came in that configuration). So please tell me where to buy at the same price the first type. Is it possible that some online stores to sell something presented with 80 Gb HDD and 512 Mb RAM and inside to find something with 100 Gb HDD and 1 Gb RAM? And if yes which of them?

[adinu]

Why dont u go to circuit city and get that one, or have them ship it to ya?

[ruc]

I am not going to circuitcity because they will add probably taxes to that price (I am in Wisconsin) and anyway I will have to wait for the 200$ rebate. The other stores will offer me the same stuff without waiting any rebate.I am a foreign graduate student in US and I need any dollar.

But what do you think about this Acer:
http://www.compusa.com/products/product_info.asp?product_code=332687&pfp=BROWSE
Does it worth Intel Centrino 725 compared with AMD Turion 64. The Centrino version has Firewire, Infrared, DDR2 and I think also the LCD is better.
I appreciate any help.