Damn Dallaz, those are awesome pics and awesome lenses. Would love to have that setup!
I second that you dont need to have expensive lenses to get good shots. I have a hand me down Nikon D50 that my sister gave me since she has a D90 now but it does the job. I still have the stock 18-55mm lens plus the 70-300mm zoom which have allowed me to take pictures such as these:
18-55mm (came with camera, works best when zoomed all the way out to 18mm)
70-300mm (this works best when zoomed all the way in..more bokeh!)
But I have also recently purchased these two which I love. Each for about $200.
50mm 1.8 (great for portraits)
35mm 1.8 (also great for portraits but a little wider for cars too)
I love these lenses but next Im looking for something a little more wideangle. I like that 10.5mm 2.8 you have Dallaz, might just have to save up for that one.