What to buy?

My current router is getting ready to crash land it seems because i keep needing to reset it a few times a day. I was wondering if anybody would have any input as to what i should buy. My house has 4 ipads 3 iphones 2 macbook pros and a pc<sadly>. Along with all that I use PS3 to stream netflix to the tv. What would be the best set up so i would not have any problems with wireless coverage in my house? Thank you in advance for the responses Lloyd