Well, you can take his gifts if you like, but know that every gift comes with a price. Remember the beginning of The Godfather when the guy asks Don Corleone to take revenge on the thugs who beat up his daughter? Don Corleone agrees, but says, "Some day... I will call upon you to do a service for me." And he does.
It's the same with your dude. Donald Trump will want something in return for his gifts sooner or later (my money's on sooner). When he does, it won't be a shoe shine, I assure you, although some polishing will likely be involved. Heh heh. Wink. If you and he were in an established relationship and he wanted to buy you nice things, that'd be different, but if you've just met and he's already offering gifts, he might as well be leaving money on your nightstand.
If you're looking for a real relationship, this is not the way to start. What motivation will this dude ever have to get to know you, to open himself up to you, to fall in love with you, if he knows that all he has to do to get you to spend time with him is buy you a 12-pack of Diet Coke and some lowfat yogurt?
If you're not a girl who's looking for a dude to pay her bills, then I wouldn't take his gifts. You aren't a prostitute. If he's really interested in you, he can court you (as the old folks say) the old-fashioned way, which takes time and patience. Buying your interest with gifts is cheap and lazy on his part, and the gifts aren't worth the trouble and expectations they'll cause down the road.
The Wise-Ass verdict: just say no.