Hey, welcome to airsoft.
I don't think you'll find many people will be too supportive of your decision to buy those cheap AEGs. Your best bet, as everyone will tell you, is to get age verified so you can buy good quality AEGs from the classifieds or site-supporting retailers.
All that said, I recommend you get some good quality knee pads, some good boots, and a good pair of gloves.
After that, once you play more, you'll figure out what kinds of things suit your play-style more.
And with that, we wait for Kuro_Neko's copy/paste...