Im new in tennis !!! what tennis racquet should i buy ??

reuben is right. go to tenniswarehouse.com. you can demo 4 racquets and all you pay is shipping, I think's $12. Go ahead and demo the two you listed plus a couple others. i would suggest trying a couple of racquets that aren't over sized, OS. you'll probably want to try a 4 3/8 grip size.