I put the Monroe 37122s on the front my 98 4x4 and couldn't be happier. I know some folks don't like them but I do, and I'm the only one that matters.

Also, Monroe 58617 coil overs went on the rear to fix the inevitable Explorer butt sag. I paid $167 for all four from RA. Works out to $41.75/shock with the 5% forum discount.
EDIT: Current RA pricing is $89.89 for 58617 set and $32.79 ea for the 37122 fronts. Works out to $155.47 plus shipping.