no the price is not going to be much less first check the cables as mentioned above. if that does not work go to ebay.com and you can buy a brand new screen for under $100. I have replaced mine due to red lines on the screen. this was simple, but this is what i do at work so read the links below before deciding.
Macbook White
Parts:
decide if you want glossy or matte. The first link is glossy, the second is matte. Glossy is cheaper.
A+ NEW APPLE MACBOOK 13.3" LCD SCREEN LP133WX1-TLA1 /A - eBay (item 200334089490 end time May-20-09 23:03:30 PDT)
eBayA_W0QQitemZ180334146649QQcmdZViewItemQQptZLH_Defau ltDomain_0?hash=item29fcc0b459&_trksid=p3286.c0.m1 4&_trkparms=72%3A1234%7C66%3A2%7C65%3A12%7C39%3A1% 7C240%3A1318%7C301%3A0%7C293%3A1%7C294%3A50
How To:
the video is great just don't cut the cable like it says and it would be perfect.
YouTube - Display replacement (Apple MacBook) 7032
Replace MacBook Screen - A Tutorial - Apple, Hardware, Repairs, Tutorials - Tweak OSX
Macbook Aluminum
Parts:
APPLE MACBOOK ALUMINUM LAPTOP LCD SCREEN 13.3" LED - eBay (item 310140547205 end time Jun-05-09 09:38:21 PDT)
How To:
i can't guarantee this one but this may help.
13 Inch Unibody Repair Video