New Ideapad Z400@2699 and Z500@2249 available at Lenovo booth and promotions at the Tech World Expo Fair 2013 in Mid Valley Exhibition Centre from 1/2/13 to 3/2/13 according to local Lenovo facebook at: 
http://www.facebook.com/LenovoMY

Quoted from Lenovo brochure:
"The new slim fit
25% slimmer and more powerful.
Thin and light, yet packed with powerful features. The Ideapad Z-series just made ultra-performance ultra-portable. Now with Windows 8. Designed for touch,, mouse and keyboard, so you can choose how you get around."

Z500 touch, i5-3230M + Nvidia GT645M + (1366x768; touch)@RM2249, 4GB, 1TB, W8; backlit, 2 years warranty
Z400 touch, i7-3632QM + Nvidia GT645M + (1366x768; touch)@RM2699, 4GB, 1TB, W8; backlit, 2 years warranty
Free backpack and 3 yrs warranty extention during promotion.

Hope to get the specs right due to poor quality of Lenovo brochure in their facebook. 

Z500 look quite promissing due to "good enough" gaming performance in slim designs with touch & cheaper price.   
Battery life up to 6 hrs according to their website. 
http://shopap.lenovo.com/my/en/products/la.../z-series/z500/

RM2249 seemed a bit too cheap for the specs offered 

Touch screen is just a marketing gimmick though
And you don't need an i7 for gaming, i5 is more than enough since gaming performance depends more on the graphic card. And the VRAM (1GB or 2GB) doesn't matter for performance...

I would suggest you getting the i5 (RM2099) version, use the remaining money to throw in an SSD
The overall speed of your notebook will be much faster than you simply getting the i7 variant

the use of i7 is for professional projects usage like AutoCAD, programming code compilation which needs the power of processors. like sifu TJ said, if you intend to game only, i5 is enough. and the rest let your graphics card to do the job. most of the games now are depending on graphics card, not the processor.

about HDD exchange, max is 128GB. no pricelist provided unless you ask it directly at shops or at the garage sales section.

the price of 1TB HDD equals to 120GB Intel 330 SSD. the Z400 is a single hard drive bay, so its impossible to place 2. unless you want to get a desktop replacement, which is 17" screen and above.

however, save the money bro. SSD upgrade can be done in the future, not now. the price for SSD is yet still skyrocketed.

If you need the extra CPU and GPU power, then get the Y400 bro, its the better choice by far   

PC fair is this week bro. wide selection for you i think.