Buy Espon Ex70 Bulb Buy Scanmaker, Plzzzz!!!!!?

Buy scanmaker, plzzzz!!!!!? - buy espon ex70 bulb

I am now used as ScanMaker to buy the second.
but among them, perfection ESPON 1260 .. 1200x2400 dpi, 42.48 bits,
canonLiDE 20 .. 600x1200 dpi, 1200x1200 dpi UMAX, Microtek V636.
What should I buy?

Scanning of photos, the bits that at least?

Thanks