GALAXY GROUPS ARE IDEAL SYSTEMS TO STUDY BARYONIC PHYSICS WHICH IS IMPORTANT FOR BOTH USING X-RAY OBSERVATIONS OF CLUSTERS FOR PRECISION COSMOLOGY AND STUDYING GALAXY FORMATION AND EVOLUTION. OUR UNDERSTANDING ON THE HOT GAS PROPERTIES OF GALAXY GROUPS HAS BEEN GREATLY IMPROVED WITH XMM AND CHANDRA. HOWEVER LIMITED PROGRESS HAS BEEN MADE FOR LOW-MASS GROUPS. IN FACT THE L-T RELATIONS IN THE LITERATURE STILL USE THE R0SAT PSPC RESULTS FOR SUCH LOW-MASS GROUPS EVEN THOUGH THE PSPC RESULTS CAN BE QUITE UNCERTAIN. WE HAVE STARTED A PROJECT FOR A COMPLETE RE-ANALYSIS OF THE KT<0.6 KEV GROUPS FROM THE PSPC SAMPLES WITH XMM AND CHANDRA DATA . TWO GROUPS NEED NEW XMM OBSERVATIONS WHICH ARE REQUESTED HERE. THE RESULTS WILL EXTEND IMPORTANT SCALING RELATIONS TO LOWER MASS GROUPS.