For cheap raid, I have a second hand hp DL380 with 10 x 2.5" sas drives. You can set the raid array to raid 5 or raid 10, dead easy on the DL380, just tick boxes with the mouse. I paid £125 on ebay for the lot. For wifi, I use a bunch of 1.3gb dual 5G sticks. They cost me £5 each. For remote...