can i use smsf to help buy my first house?

I was just out walking and was thinking about things (which i often do) and was wondering if i can use some of my Funds in my SMSF to help pay for my first house so i wouldnt have to borrow as much?
Just a example of what i was thinking was say if i had $150,000 saved and say $80,000 in my SMSF and i use $50,000 of that so help purchase a house, then i wouldnt have to borrow was much from the bank and get it paid off quicker.
So then say if down the track i wish to sell the house i just work out what percentage my SMSF paid for back then and the value of the house at the time i sell, and then that money can go back into SMSF as cash.

Would this be possible and will it be worth it, or to much trouble?
Cheers
Hally2710