If it has all the records and all that stuff has already been done, $4,500 is not a bad price. Also keep in mind that the suspension probably is getting to ready for replacement (not just the struts). I had a rear spring crack on me; and apparently that is not uncommon.
Also, adding to Kirby's fine list:
Thermostat
O2 Sensor
Cat Converter (depending on the type of driving on the first 150k
Muffler (depending how loud it is getting)
Control Arms (+Bearings)
Tie rods (Although, if he replaced the rack, probably did this as well)
Also, what's wrong with the A/C? Is it the compressor? That's an expensive part.