A GENERAL SIMULATION:

PERSON	Suggestion1	Suggestion2	Suggestion3
Francine $300	The Apex Researcher Microscope $201 The Apex Advanced Microscope Slide Kit $75 The Apex Starters Microscope Slide Kit $24	Panasonic Lumix G10 12.1MP Compact System Camera Kit - Black $300	A Business-class latitude laptops $300
Pawel $250	EyeMax Solar Radio $150 Solar battery charger $24 CameraPentax Optio LS1100 (14MP, 3-inch LCD Screen, 4 x Optical Zoom $75	Royal Doulton Superblock Twin Undersink Water Filter $250	Organic Gardening $25 Shower filter $100 Wind Powered Generator Experimentors Kit $75
Pablo $200	Santa Cruz Transfer 5k/5k Jacket $150 Nixon The Outsider Watch $50	Emu Stinger Hi Sheep Skin Boots $150 Montane Extreme Salopettes $100 Berghaus Technical L/S Crew Neck Tee $50	Brasher Supalite Ii Gtx Walking Boot $125 Grivel Salamander Helmet $55 Wild Country Astro Wire Gate 10cm Quick Draw $20

In my opinion the most suitable price for the first student, Francine, would be: the sugestión 1. Because  its a complete kit for someone who loves science, and it includes a book for begginers using  a microscope.

For the second student it would be perfect the first sugestión, so that it contains a camera  for taking pictures during his trips and the battery charger is solar so its very easy, and also a radio to listen to music while travelling.

For Pablo I recomend the sugestión 3 as it can helps him with his adventures doing extreme sports, like having this fantastic boots  with great support and good quality.