go for the HP 7550. it uses photoret IV technology, like the 7150. However, it has an LCD display, slot for memory card, etc. you can edit, crop, etc right on the printer. amazing. HP is the best brand to get because of its long lifetime and quality. They also stay nice and fresh forlong periods of time. i have a 7 yr HP 600 printer, and it still keeps on giving.
things you might want to consider is price. HP cartridges are considerably more expensive than others.
canon is good, but not great. HP's colour layering technology is truly amazing. the epson is probably the cheapest choice, in price and quality. Epson isnt bad, but isnt good. HP is definately the way to go.
HP 7550 stats:
can get pics via USB, memory card (Compact Flash, SmartMedia, Memory Stick (Sony) SecureDigital, and MultiMedia)
preview and enhance pics on the lcd display
4800dpi
photoret 4
more than 1.2 million shades (350x more than photoret 3)
most natural tones
13ppm colour, 17ppm black
dedicated black cartridge
cons: expensive. needs 6-7 cartridegs (6 for the non-natural black) the 7th cartridge is for black ink, for pure balck since the CMY black doesn't do black justice (more like #080808 colour)
have fun
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