Having only 5 points in Resto is, kindly speaking, a silly idea. But putting them into IMotW is just stupid, sorry.
If you so very want only 5 pts in Resto, take Furor. It's uberimportant. Trust me.
If you want to pve mainly and don't expect to change roles too often, take
http://www.wowhead.com/?talent=0ZZVx0z
If you want to PvP, this combination is a must:
http://www.wowhead.com/?talent=0ZZVbhz
And finally I strongly recommend you max out Naturalist for the 10% physical dmg bonus, which would leave you with:
http://www.wowhead.com/?talent=0ZZVxhz
No time to explain stuff now, but the last 'build' (its Resto part) is worth it if you wanna PvP.