I have done this before. I own a relatively inexpensive HP flatbed scanner with a slide attachment that fits in the cover of the scanner. Simply insert the slide into the slide holder and scan it in. I use the hightest scan .dpi setting. This will give you a pretty good image, which can be stored on a hard drive or put on a DVD. If your scanner allows you to scan at 1200 dpi you will get a respectable image that can be enlarged to 8 X 10 and still provide good detail.
It is a time consuming process especially if you have lots of slides. Just pick out the ones that you really want to scan and away you go. Each slide takes about 30 to 40 seconds to complete, which means you can do roughly 40 slides per hour. In 4 hours you can do 160 slides.