We report on X-ray monitoring of two isolated pulsars within the same RXTE field of view .
PSR J1811 - 1925 in the young supernova remnant G11.2 - 0.3 has a nearly sinusoidal pulse profile with a hard pulsed spectrum ( photon index \Gamma \sim 1.2 ) .
The pulsar is a highly efficient ( \sim 1 \% of spin-down energy ) emitter of 2-50 keV pulsed X-rays despite having a fairly typical B \sim 2 \times 10 ^ { 12 } G magnetic field .
PSR J1809 - 1943/XTE J1810 - 197 is a newly discovered slow ( P = 5.54 s ) , apparently isolated X-ray pulsar which increased in flux by a factor of 100 in 2003 January .
Nine months of monitoring observations have shown a decrease in pulsed flux of \sim 30 \% 
without a significant change in its apparently thermal spectrum ( kT \sim 0.7 keV ) or pulse profile .
During this time , the spin-down torque has fluctuated by a factor of \sim 2 .
Both the torque and the flux have remained steady for the last 3 months , at levels consistent with a magnetar interpretation .