I just got the KYB GR2 Strut Assembly's from Rock-Auto for around $125 per without shipping... a pretty reasonable price. Yeah, they're NOT racekar status, but I would say a major upgrade to replacing what was the original struts with 90k on them.
RockAuto doesn't list the parts you have to know the # and search for them... so here they are... (for 98-03 GP)
KYB SR4002 Front (Driver and Passenger the same part #)
KYB SR4003 Rear (one is Driver, one Passenger sides, forgot which, but you can match them up when pulled off car)
KYB SR4004 Rear
The GR-2 Strut assemblies are a notch above stock replacement, but not an aggressive Strut/Spring combo.
