I think the following laptop is the best one for your teacher:
PRICE:$799.00(US Dollars)
Gateway M-6880
configration :
Intel® Core™2 Duo Processor1 T5750 (2.00GHz, 667MHz, 2MB L2 cache)
Genuine Microsoft® Windows Vista® Home Premium (64-bit) SP1
Memory 4GB, 667MHz DDR2 SDRAM (2-2048MB modules)
Hard Drive 320GB 5400RPM Serial ATA II hard drive with 8MB cache (1-320GB)5
Chassis w/ Integrated Intel® Graphics Media Accelerator X3100 with up to 384MB of Dynamic Video Memory and Intel® GM965 chipset
External Ports (3) USB 2.0 Ports, VGA Connector
Adapter 65 Watt AC Adapter
Application Software Microsoft® Works 9.0, Microsoft® Money Essentials & Microsoft® Office Home and Student 2007 (60-day complimentary trial period)8
Backup Media Cyberlink Power2Go
Battery Primary 6 Cell Lithium Ion battery w/ 1 Yr. limited battery warranty7
Digital Media Manager 5-in-1 Digital Media Manager (Memory Stick™ (MS), Memory Stick™ Pro, Multi Media Card™ (MMC), Secure Digital™ (SD), xD-Picture Card)
Dimensions (Box) 17" (H) x 13" (W) x 6" (D) or 432mm (H) x 330mm (W) x 152mm (D)
Dimensions (System) 1.1"-1.50" (H) x 14" (W) x 10" (D) or 28-38mm (H) x 356mm (W) x 254mm (D)
Display 15.4" WXGA Ultrabright TFT Active Matrix (1280 x 800 max. resolution)
Fingerprint Reader Fingerprint Reader
Finished Goods Brushed-metal precision-touch multimedia control panel, featuring smooth-cut keys and touch-sensitive volume adjustment.
Finished Goods Cyberlink Label Printer for Windows Vista
Integrated Modem 56k ITU v.92 ready Fax/Modem (RJ-11 port)
Integrated Network 10/100 Mbps Ethernet LAN (RJ-45 port)
Keyboard Integrated Keyboard
Keyboard and Mouse Full-Size Keyboard, Touchpad with Vertical Scroll Pointing Device and Dedicated Multimedia Panel
Memory Capacity Maximum 4GB
Operating System Backup Media Microsoft® Windows Vista® Home Premium Media (64-bit)
Optical Drive 8x Multi-Format Dual Layer DVDRW with DVD-RAM featuring Labelflash™ Technology6
Security Software Norton 360 All-in-One Security™ 2008 (180-day trial with live updates)9
Warranty 2 Year Parts and Labor Limited Warranty7
Web Camera Integrated 1.3 Megapixel Web Cam
Weights 6.29 lbs. (2.85 kg) system unit only / 10.28 lbs. (4.66 kg.) box
Wireless Network Integrated Intel® 802.11a/b/g/Draft-N Wireless Networking
It is available at any nearby Costco store and its for sale.You can get it online from the Costco official website too.
It has all the requirements you need(probably a lot more than those)and its at almost half the price of $1500.