how bout this?

HP ENVY Touchsmart 15-j051nr

15.6 in diagonal Full HD BrightView LED-backlit touchscreen (1920 x 1080), 10-finger multi-touch support
Intel Core i7-4700MQ 2.40 GHz with Turbo Boost technology up to 3.40 GHz
12 GB DDR3 1600 MHZ
1 TB SATA 5400 RPM
Windows 8
SD card reader
Beats Audio quad speakers and two subwoofers
Intel HD Graphics 4600 and NVIDIA GeForce GT 740M with 2 GB graphics memory
4 USB 3.0 (1 charge) • HDMI • Headphone output/Microphone input combo • RJ-45 (10/100/1000)
6-cell lithium-ion (up to 9 hours)
HP TrueVision HD webcam
802.11b/g/n • Intel Wireless Display (WiDi) capable (separate adapter required)
Bluetooth
14.94 x 9.87 x 0.74-1.18 in (379.47 x 250.69 x 18.79-29.97 mm)
5.62 lbs (2.54 kg)

rm2899 only..

slim but not light weight..

this also can consider?

Brand NEW HP ENVY 17-J029nr

Windows 8
Intel® Core™ i7-4702MQ with Intel HD Graphics 4600 (2.2 GHz, 6 MB cache, 4 cores)
NVIDIA GeForce GT 750M switchable (2 GB DDR3, up to 3.99 GB)
8 GB DDR3 Upgradeable to 16 GB
1 TB 5400 rpm SATA
Blu-ray player/SuperMulti DVD burner
10/100/1000 Gigabit Ethernet LAN
802.11b/g/n; Bluetooth; WiDi; Intel Smart Connect Technology support
120W AC power adapter
6-cell (62WHr) Li-Ion Up to 4 hours and 30 minutes
4 SuperSpeed USB 3.0; 1 USB 2.0 (with HP USB Boost); 1 HDMI; 1 RJ45; 1 headphone-out/microphone-in combo
Multi-format digital media card reader
ENERGY STAR® qualified; EPEAT® Silver
17.3" diagonal full HD anti-glare LED-backlit (1920 x 1080)
Full-size, island-style, backlit with numeric keypad
16.38 x 10.8 x 1.21 in
6.28 lb
HP TrueVision HD Webcam with integrated dual array digital microphone
Beats Audio; 4 speakers; 2 subwoofer

rm2999 only..

very nice design, slim..with beats Audio..good graphic card...full hd screen, high RAM..SSD cache make it more faster boot up..

Do you intend to install W7 yourself?
In terms of built and quality, I would prefer the Lenovo overl. But in terms of warranty support, Dell is better (if covered) 
Tough pick

Dell Vostro 5470 don't have spec that come with W7.
That left you only with:
ThinkPad Edge E431, i5-3230M + Intel HD4000@RM2589[2.15kg], 4GB, 1TB, W7P/W8P, anti-glare
Make sure you upgrade to 3 years on site warranty.

May also consider:

Asus (according to sifus, apparently Asus Malaysia is setting up on site support team for its PRO series. Please check with re-sellers. Without on site support, not suitable for "work" purpose)
PRO45VJ-V0047X, i5-3230M + Nvidia GT635M@RM2399[2.4kg], 4GB, 500GB, W7P
PRO45VJ-V0056X, i3-3120M +Intel HD4000@RM1999[2.4kg], 4GB, 500GB, W7P

HP
ProBook 4440s, i5-3210M + Intel HD4000@RM2549, 4GB, 500GB(7200rpm), W7P, anti-glare

Dell (we don't have the price list, but I know it is priced competitively vs Thinkpad Edge)
Latitude 14 3000

Prices are RSP, negotiable.

V480, i5-3230M + Nvidia GT740M@RM2305, 4GB,500GB(5400rpm), W7P
ThinkPad Edge E431, i5-3230M + Intel HD4000@RM2589[2.15kg], 4GB, 1TB, W7P/W8P, anti-glare

spec wise, the V480 actually has a more powerful GPU
but on build quality, E431 / E430 win. You will notice it once you compare them side by side (try twisting the laptops)

not that old, I think have been in market for about 1 year  If you decide to go for it, just make sure you get brand new sealed unit.

For Lenovo consumer line laptop (I think V480 is consumer line ), normally the re-seller can arrange to buy the on site warranty extension for you, but you have to register online (a code will be provide to you to register online). Upon registration, normally you will be requested to send a scanned copy of your purchase receipt from the re-sellers through email, so that Lenovo can start the warranty from the date on the receipt.