The SLR does give you the ability to have more precise image composition, but, I think for taking general photos (and even close-ups), with a little practice you can get the images you need.
I have the Canon S-45 and am quite pleased with the results for fast images needed for the web or other electronic usage. I have made 8x10 prints from the raw files and they're okay (workable) - but still a long way from anything done in 35mm, let alone medium or large format film. If you want prints of the images, shoot in the RAW mode & don't expect to get a quality print at anything over 8x10.
The G-5 has the advantage of having a lot of reasonably priced add-on lens accessories (wide angle, telephoto, etc.) The problem with scanning film, is that until you get to a scanner with a D-max capability of at least 3.8 (real, not manufacturer's best wish), you're going to be losing information in the shadows.
Also, I think you'd be more likely to update photos on your website more readily with a digital camera because it's so easy to do. Film scanning, (which I do a lot of) is slow, requires retouching of the image to look good and becomes a real chore for images that are only going to be displayed at 72dpi at 6x8-inches max on a monitor.
Buy the G-5, believe me it will do everything you need it to do & will pay for itself in time saved if you plan on updating you website regularly.
