It looks like you could try TrueCrypt, which some people suggest.
I've stumbled across some others, but I don't know how good they are.
Their names are:
Comodo Disk Encryption
Dekart Private Disk Light
DiskCryptor
FreeOTFE
CompuSec
The typical cost of a surround sound computer speaker system is about $50. There are some which cost more but the main difference is according to the Wattage and the number of surround channels.
60 dollars
Cost Effectiveness Efficiency Reliable
The smallest spy camera system can cost around $ 59.95. You can also get a more advanced system that will cost from $500 up to $1000.00 this one can be linked directly to a computer.
$2000.00
Depends on what you are looking for. If you are looking for a gaming computer, you can build your own for about $600 and get a pretty descent system.
You can purchase a basic computer system for as cheap as $34, the Raspberry Pi. You can also get a free used computer from a range of websites (e.g. Gumtree).
The price of a computer mouse will vary depending on the brand and type of mouse you are purchasing. Most computer mice can cost on average $15 for one but can cost as much as $30 or more for one.
A ERP system varies in cost. If you get everything with the works, and support system as well, it could cost from 10,000 to 15,000 dollars. It depends on what you need.
2000
i'd say for a used computer...$100 off of eBay
The computer and video games cost 12 -28 dollars depending on which system. The computer games are the 12$ games and the Video games are closer to $20-25