its one **** of a squeze but its posible
mobo
http://www.newegg.com/Product/Produc...2E16813139147R
case
http://www.newegg.com/Product/Produc...82E16811195014
cpu
http://www.newegg.com/Product/Produc...82E16819112208
memory
http://www.newegg.com/Product/Produc...82E16820141216
$146.29
i could fit a cheap cd-rom drive in there if you need one the mobo has integrated graphics so you have to live with it.oh and a 3 dollar case fan too
:edit: i dont think video editing would work on a 170 dollar budget but thats the best i could come up with though