getting that professional look has very little to do which camera you buy.
professional cameras are built better to take a lot of use and they tend to use expensive glass rather than kit lenses.
it is about lighting, exposure and how to use the tools to create your vision.
YES!!!!
I have a deep love with photos and i want some help learning how to create those photos. I am a real beginner and have tried a few things but just can't seem to satisfy my eye! HELP!!LOL
Budget? Experience? Etc...?
You're going to have to learn about exposure, aperture, ISO, and all the basics if you don't know how they relate and create an axposure already.
I hear "Understanding Exposure" is a good read for most anyone that's an amateur.
If you're serious about this, I recommend skipping the entry level cameras like the D40, XTI, XSI, etc...
If you don't have the budget for a $1000 50D or D90, look at something like a used 20D, 30D, d70, d80, or whatever. These cameras general don't have a huge advantage as far as image quality is concerned, but the controls and option make them much easier to work with.
The D40 will only autofocus with lenses with built in AF motors. I think it (d40) and the rebel line only operate certain parameters like ISO in full stops where as the next line up in most manufacture's bodies will do that in 1/3 stop increments.
Plus the controls are a lot easier to use when you get used to them.
Also, lenses and light are what create quality. I have an original Canon Digital Rebel that I can use to take pics just as good as what comes out of my 30D if I'm using quality glass and lighting correctly (but the better bodies offer easier use). Glass can be expensive though. Generally a $200 lens will not produce as high quality a photo as a $1500 lens. There's exceptions though and lighting can have a bigger impact that lenses.
I've seen people tell "noobs" on here to completely shy away from the kit lenses that come with most cameras, but I have some very high quality photos that I used my kit lens with. It's just that cheaper lenses as generally a little softer than their more expensive counter parts, their apertures usually aren't as wide, and in uncontrolled environments they're more prone to chromatic abberations and other unwanted effects.