An SLR takes quite a while to learn to use, you can use it in auto right away but I think it takes the better part of a year to get really comfortable with it. If you don't want to invest the time you should get a high end point and shoot. Even with an SLR on full auto you'll get better photos out of a high end point and shoot if you don't know what you're doing. My cameras, higher up models that the 400D, have something like 25 buttons and 4 dials, and you have to know what each one does and how to use it in a hurry! Well I do but I do it for a living.
If you do want to pursue it, then get the SLR ASAP and get the book
"understanding exposure". You can spend decades becoming a great photographer... i'm giving it a go.
For lenses neither of those are great. To learn i'd suggest you get the Sigma 30mm F1.4 lens, it doesn't zoom at all, that's why you have feet. Maybe get the 17-55 lens as well, just because maybe you'll want a wider angle than 30mm. If you tell me what you want to do with it, ie everything, landscapes, portraits, macro, etc, I can recommend lenses and gear.
Oh you'll likely want an external flash as well, the 430EX is good. Plenty of memory cards, spare batteries - don't buy genuine use
http://www.sterlingtek.com cheap and good - I have a half dozen or so and they work great.
I started out with an NZ$1500 camera, now I have, um, let's just say i've spent enough on camera equipemtn to buy a rather nice car! Then again it's all paid for itself
