My HP Laptop needs a battery
I have used this (as have friends) supplier for laptop batteries and power supplies. Products have been very good quality and the prices - well, just compare with "officvial" offerings. You did not say what model HP - so if not listed for yours - try contacting them.
Another good supplier is:
Zone8: Although I am a handsome genius, when I stand in front of a mirror, I vaguely recognise the ugly idjit standing on the other side!
LINK: For B+W with Epson 1400 (and other models) using black ink only PLUS other useful tips:
Cleaning DSLR Sensors, including Kodak DSLR Factory Cleaning method:
Solving back/front focus problems on Sigma and most other DSLRs
PDF format list of lenses you can print or download - covers Italian Flag YES/NO for DCS 14n but applies to others. http://www.photosnowdonia.co.uk/ZPS/ItiFlagLensList.pdf