Sewing Machine - I have a Brother Computerized Sewing/Quilting Machine SQ9050. It's a great machine. It does almost everything that I want. If you are just starting out I would suggest finding a vintage machine. My suggestion would be Craig's list or a garage sale. Shipping costs will kill you on Ebay. You can find machines ready to go for $50 or less. I have been picking them up for under $20 because my husband can clean up them. If you have that option you can pick them up for $5. The great thing about the vintage machines is there is very little that you can screw up with them. They are all metal and will take the abuse.
Scissors - Get good ones. This is not the place to skimp. Scissors can make or break a sewing project. There are times
Irons - Oh, I have a love hate relationship with these things. They are necessary in the sewing room but I hate to use them. My dream iron is a Rowenta DW5080 Focus Steam Iron with 400-hole Stainless Steel Soleplate 1700 Watt, Beige. I just can't bring myself to spend $82 for an iron. They are amazing though. Instead I have a HAMILTON BEACH Non-Stick Clothes Iron that you can pick up for $20.
Seam Ripper - You need a new one unless you just bought it. They are cheap, so cheap Amazon doesn't even sell them unless you have a $25 order. DO NOT BUY A USED ONE!
These items will get you started. Buying them through the Amazon links will help me but it's up to you. They are provided to give you ideas. I'll be sharing all of the extras I use later on.