You can consider buying
1)ASUS UL30A-X5 Thin and Light 13.3-Inch Black Laptop (12 Hours of Battery Life)
*1.3GHz Intel SU7300 Core 2 Duo Processor
*4GB of DDR3 RAM, 2 slots, 4GB Max
*500GB SATA Hard Drive (5400 RPM)
*13.3" HD LED LCD Display, Intel GMA 4500MHD, Wi-Fi 802.11 bgn, 0.3M Webcam
*Windows 7 Home Premium Operating System (64 bit)
http://www.amazon.com/UL30A-X5-Light-13-3-Inch-Laptop-Battery/dp/B002P3KMVC/?tag=bdd-linking-001-20
2)HP Pavilion DV6-1350US 15.6-Inch Espresso Laptop - Up to 8 Hours of Battery Life (Windows 7 Home Premium)
*2.2GHz Intel Core2 Duo T6600 Processor (2MB L2 Cache, 800 MHz FSB)
*4GB DDR3 RAM (2 Dimm), Max supported 8GB; Intel Graphics Media Accelerator 4500MHD (shared) with up to 1.6 GB total available graphics memory
*320GB (7200RPM) SATA Hard Drive, LightScribe SuperMulti 8X DVD±R/RW with Double Layer Support
*15.6" Diagonal High Definition HP LED BrightView Display(1366x768)
*Genuine Windows 7 Home Premium 64-bit, Up to 8 Hours of Battery Life
http://www.amazon.com/Pavilion-DV6-1350US-15-6-Inch-Espresso-Laptop/dp/B002ONCD4M/?tag=bdd-linking-001-20
3)HP Pavilion DV5T 15.4-Inch Laptop (Intel Core 2 Duo P7350 at 2.0GHz, 4 GB RAM, 320 GB Hard Drive, WSXGA (1680x1050), True 1080p, HDMI, NVIDIA GeForce 9600M w/webcam, BLu-ray ROM, Windows Vista Ultimate)
* 15.4-inch Diagonal High-Definition HP BrightView Widescreen Display, WSXGA (1680x1050), True 1080p, HDMI
* 2.0 Ghz Intel Core 2 Duo Processor P7350 with 3MB L2 Cache
* 4G DDR2 System Memory, 320GB Hard Drive (SATA), NVIDIA GeForce Go 9600M w/webcam
* Blu-ray ROM w/perMulti 8X DVD±R/RW with Double Layer Support, Intel WiFi Link 5100AGN
* Genuine Windows Vista Ultimate, dims in inches: 14.05" (L) x 10.20" (D) x 1.37" (min H) in approx., 5.83 lbs
http://www.amazon.com/Pavilion-DV5T-15-4-Inch-1680x1050-Ultimate/dp/B0018KLMRG/?tag=bdd-linking-001-20
Try to search here you can find more options :
http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=laptop&x=0&y=0&tag=bdd-linking-001-20