How to open Nikon Coolpix P7100 RAW file i Adobe Photoshop CS3?

NOTE! I have an old 3.0Ghz P4 with 2GB RAM. :-(
>>> How to open Nikon Coolpix P7100 RAW file i Adobe Photoshop CS3?

What laptop should I buy with these requirements?

I need a laptop for work travel. Any suggestions please.It needs to fulfill the below.

· Run multiple applications, like Word, Adobe, all Microsoft apps, Nikon Coolpix and similar editing programs for my pics

· Is going to allow me to download onto a HDD at least up to 500 pics from every visit (they will be backed up at the end of each visit and removed)

· Can let me watch vids, play music, etc

· Has internet, wi-fi, all the mod cons

· Has got to be very durable and tough (I go to some god awful places)

· Has got to have a battery life of up to 4 hours

· Has got to have a good hi-def screen if possible for photos

· Looks good
>>> What laptop should I buy with these requirements?

How to pause a video while recording with a Nikon Coolpix L810 camera?

Help please. I need to pause my video while recording for a school project and I have no idea how. Does anyone know how to pause a video while recording with a Nikon Coolpix L810 camera? Please.
>>> How to pause a video while recording with a Nikon Coolpix L810 camera?

Please explain the difference between lens adaptor and filter adaptor, thanks?

I own nikon p510, if i buy lens adaptor what are the lense/s should i buy? How important are lense hood? thank u
>>> Please explain the difference between lens adaptor and filter adaptor, thanks?

Need help choosing between these Bridge cameras?

Hello, I am looking for a budget ( around 150GBP / 175EUR/ 230USD) camera. I am not much into cameras so I don't need a DSLR. I just need a good camera for upcoming trips with plenty of zoom and stuff to play with. Also I take photos and videos of fish (in aquariums) very often so I need something that will take a clear photo of (slowing) moving objects. I narrowed down my options to:

Olympus SP-720UZ: 14MP CMOS, 26x optical zoom, HDR, 1080p Video Recording
http://www.olympus-europa.com/site/en/c/cameras/digital_cameras/traveller/sp_720uz/sp_720uz_specifications.html

Nikon Coolpix L810: 16MP CCD, 26X, no HDR, 720p
http://www.europe-nikon.com/en_GB/product/digital-cameras/coolpix/life/coolpix-l810

Samsung WB100: 16MP CCD, 26X, 720p
http://www.samsung.com/us/photography/digital-cameras/EC-WB100ZBABUS

Panasonic Lumix LZ20: 16MP CCD, 21X, 720P
http://panasonic.net/avc/lumix/compact/lz20/specifications.html

more expensive option but it looks more value for money.
Olympus SZ-31MR: 16MP CMOS (not sure if BSI), 24x, HDR, 1080p
http://www.olympus-europa.com/site/en/c/cameras/digital_cameras/traveller/sz_31mr/sz_31mr_specifications.html

I don't want to fall for the MegaPixel numbers and such things. Please help me. Thanks
>>> Need help choosing between these Bridge cameras?