I would suggest what I have, an Asus if you care about graphics, art making, or gaming. It's very good for visual stuff and processing big programs like photoshop, along with other things open, and games.
Look at Dell's website. Some of their laptops are on the pricey side but their builds are more than solid. I personally own an Acer but that was due to lack of funds more than anything.
I had an HP Pavilion a few years ago and it was awesome, so stayed with HP when I needed a new one. Bought another Pavillion about a year ago (Pavilion dv6) and it's physically rubbish. It performs beautifully, don't get me wrong, but in the year I've had it one of the speakers has blown out, the fingerprint reader stopped working, the lid switch is wonky (when it's closed it doesn't realize that it's closed and thus constantly comes on and off unless I shut it down entirely), the plastic case around the edges has cracked in a few places, and a hotspot has burned into the bottom of the screen. I doubt I will buy another consumer line HP after this one
I've heard good things about their business sector with the Elitebooks, though. I would just be wary of their consumer line, as it seems to have gone downhill quite a bit in my experience.
I am looking for something with at least 6GB RAM and 500GB HDD
Please Help? it is much appericated