On both the belt and disk sanders, the workpiece is presented to the tool (the opposite is true of portable belt and hand-held disk sanders which are presented to the work; as a result, they are particularly useful in sanding oversized workpieces). On stationary sanders, an adjustable worktable or fence can be fixed in front of the sander to position the workpiece during sanding. Belt sizes vary greatly, with four-inch wide, two- or three-foot-long belts being usual, as are four- to eight-inch diameter disks.

If you are like most woodworkers, you will end up with a few large machine tools, some smaller ones and a collection of much-needed hand tools. However, the tools you should have in your wood shop (especially if you are starting afresh) depends a lot on the kind of woodwork you will make, the amount of space you have and the amount of money you will spend at the moment.
I also had the brainstorm to use two nail-in furniture "feet" on the bottom of each 2x4 on the front side so as to compensate for the carpet tack strip on the back edge and to make the shelves lean ever so slightly into the wall. I thought we might have to anchor the top of it to the wall, but with the feet, it stands very firm with absolutely no signs of wanting to tip forward! I felt great satisfaction when the almost 150 square inches of friction applied allowed for NO racking -- I could practically climb the end without anything budging!
If you would like to follow up on these things to learn how to work wood yourself, you could comb through a Google search for each of the topics listed but, to simplify your education, I recommend picking up a few helpful books to start. The first two are mostly about techniques, and the last one is about how to choose which hand tools to purchase.
When buying a table saw, two factors determine both price and the flexibility of the machine. The larger the blade, the larger the stock that can be cut; a 10-inch saw is probably the most common size. The dimension of the table top is the other criteria: bigger is better for cutting large stock like plywood; but bigger is also less portable and more expensive.
oh yeah, and buying a bunch of cap nuts is not so easy unless you order ahead of time. i went to two hardware stores (one family owned and one big box) and they kind of laughed at me when i said i needed 32. so i got regular nuts, tightened them so they were flush with the all thread on the front side, hammered it against the board and tightened the back side while holding the front one in place with a wrench. so, some of them have a little bit of overhang on the back side, but i don't have to worry about gouging skin while walking past it. for my next set, i'll order the cap nuts in bulk from ebay ahead of time...
We cut the supports 16 in. long, but you can place the second shelf at whatever height you like. Screw the end supports to the walls at each end. Use drywall anchors if you can’t hit a stud. Then mark the position of the middle supports onto the top and bottom shelves with a square and drill 5/32-in. clearance holes through the shelves. Drive 1-5/8-in. screws through the shelf into the supports. You can apply this same concept to garage storage. See how to build double-decker garage storage shelves here.

Another fine example of remodelling furniture and re-using what already exists in the house.  The bookcase involves using your old kitchen cabinets, and building new shelves on top of them. The final product can also be used as an entertainment unit, housing a television, books and things of your interest along with ample storage to keep other utility objects.