Is your kitchen face frame or euro-style? If you are not really changing the layout at all, you might really want to consider a re-face. Building face frame is super easy with pocket holes, then you can take your measurements for the openings and order doors and drawer faces direct from the companies that crank them out for the big cabinet companies. You might even be able to work wonders by stripping and sanding your existing face frame and putting new drawers and doors in. This has the added bonus of being able to order all the new stuff by measuring what you have and not tearing anything out until you are ready to replace it.
Installing doors with the blum concealed hinges is a snap also.
If you want to upgrade the drawers and sliders, I really like the Blum blumotion or the Accuride Eclipse sliders with the soft close (I have a really cheap source for both as well as the hinges if you're interested.) The drawer boxes are fairly easy to build, but also not too expensive to buy ready to assemble.
Even if you go the full replacement route, I think you can find better pricing on ready to assemble cabinets shipped to your door. As with most things, beating HD is not too hard with some research.
We did use HD for the Silestone countertop due to a big sale, but then they subbed to a local counter shop, and I have to wonder what I could have gotten if I just went direct.
Oh, well. We "broke ground" on ours just over a year ago and I have about 2 more full weekends left. In my defense, I've only really spent about a few months actually working on it. We have made the project work around our lives and have ended up taking months at a time off. By working in stages, we have only been with out a fully functional kitchen for about 3 days.
However you go, good luck.
Jeremy