What kind of camera should I buy my boyfriend? I'm a noob to photography ;)

He's interested in photography as a hobby but can't afford a digital camera. I really want to buy him a relatively professional one- he takes photography classes with a borrowed camera so he knows some tricks. I guess I'm saying that he's past the pocket sized point and shoot. I know an SLR has removable lenses but that's about the extent of my knowledge! I'd also like to keep price in mind. My absolute max would probably be 400 but cheaper would be wonderful. Thank you! Xx
What kind of camera should I buy my boyfriend? I'm a noob to photography ;)
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