Are you interested in printing large? Consumer flatbeds can't do anywhere near what they say they can in terms of resolution or dynamic range. If you want to turn into a scanner snob visit
here,
here and
here. Be warned what you see can't be unseen!
An Epson is good for ~4x-6x enlargement, a Nikon somewhere around 8x, and an Imacon, Kodak/Creo, or drum for 10x plus. You can print larger from any of them, just that it won't have anymore detail, similar to interpolating in photoshop.
I have a Creo Jazz+ and can post some comparisons if you'd like to pixel peep. I also do dry and wet scans for hire.
Nothing beats a nice drum scan if you're really critical and want to print as big as you can, but it's really pricey once you include shipping and everything. If you just need/want to post on the web an epson v500/700, 4990 will be plenty.
Just my opinions.