Building a computer? Need advice/suggestions? Come here!

[Reaper Man]

This is not entirely relevant, but I don't think it's worth making a new thread just for this.

I'm gunna be getting a new laptop for university, but I'm on a budget. The two computers I'm looking at are as follows

Lenovo IdeaPad Y550 ~$7000HKD (~$900USD)

• Intel Core 2 Duo T6400 2.0 GHz, 2 MB, 800 MHz
• 4GB DDR3 1066MHz
• 500GB 5400rpm Serial ATA
• 15.6" 16:9 WLED HD 1366x768
• nVidia GeForce GT 130M 512MB

or

Dell Studio 15 ~$7000HKD (~$900USD)

• Intel® Core™ 2 Duo Processor P7350 2.0GHz / 1066MHz FSB / 3MB (I may pay a ~$100USD extra to get 2.40GHz, the Lenovo's processor can't be upgraded)
• 15.6” 720p WLED 1366x768 Display with TrueLife
• 4GB (2X2GB) DDR2 SDRAM
• 512MB ATI Mobility Radeon HD 4570
• 500GB SATA Hard Drive

I don't really know much about current hardware, as I haven't kept up to date in years. I need a laptop primarily for photo editing and Photoshop, I work with pretty high resolution images, and do batch processing fairly often, so the things I do are fairly processor intensive. Both these laptops have their pros and cons, so I'm looking for a more knowledgeable opinion.

The screen resolution on both irritates me, but I can't find anything similarly priced with a higher resolution screen. Those two laptops pretty much fit right to the limits of my budget. If anybody else has any recommendations, I'd appreciate it. I'd rather avoid HP though, as I have bad experiences with my current HP laptop.

I am a sucker for the looks of the Dell, it also has a backlit keyboard and a slot loading drive. I'll probably pay the little extra to get the Intel 5300 Wireless-N card instead of the 5100, as I've heard it's much more reliable. I'd much prefer the Studio XPS 16, but it's price is far beyond what I can afford. The screen resolution though...

E: My parents said they're willing to pay the $7000HKD (~$900USD) I might pay the extra several thousand or so to get a better laptop. Augh, I don't know HELP ME

2nd E: Augh, I just checked the Dell USA site, with student discounts for SCAD, and they have so many more different customization options for the Studio laptops. I'm so confused >__>