Desert Locust are probably the most popular goggle out there for airsoft. The face mesh I would advise you to modify it to fit the goggle or you will hate the damn thing as they do not line up well together at all.
Also depending on where you are going to play some indoor fields want you to buy their field bb's. People are saying buy 8-10 midcaps....you really don't need that much to start out with. 3 or 4 120rounders should start you off just fine. Buy GOOD ones right from the start. I suggest Magpul PTS pmags 120rd. Best mag out there.
And as others have suggested good boots or you will find yourself in the hospital with a sprained/broken ankle. I like Magnum boots myself. You will be buying stuff FOREVER so be modest until you know exactly what you want/need.