1998 Toyota Camry McPherson struts

I am getting lots of front end noises when going over somewhat bumpy streets--on both sides.
I am told I should replace the McPherson struts, and want to know if both front and back usually would both be replaced, whether many mechanic hours are normally required, or if McPherson repair is much like the old shock absorber replacements. For a metropolitan area (No. Va in the greater Wash DC area) would replacement costs reasonably likely be under or over $1000.00?

Jon Guyton