Mark, even possessing all the skills and equipment you need to make good stock photography, there is a physical cap on the amount of images you can create in order to build a portfolio big enough to start generating income worth mentioning. Unless your starting a business implies hiring more staff, it will most likely be a LONG wait before you can count on reasonable income coming your way... If you have enough income / savings to cover you for, I don't know, 18 months or so (and that's after the equipment purchase) and working in stock 24/7, then you might have a good starting point for a real business.

Most monitors (and especially LCDs) are very hard to calibrate manually and besides, nowadays calibrators are so cheap (well, comparing to few years ago). So I really see no reason not to use one. Not everyone looking at our work will have their display calibrated, that much is true, but we should always strive for the best possible quality, shouldn't we? Why rely on guesswork when it's so easy to do it right from the start.

I used a Huey with success until it died suddenly after a year and half or so of constant use (made everything magenta, a common problem with the device). Decided to try a different model, so I got an Eye One Display LT, not much more expensive than Huey Pro, but more accurate and with much more control over display settings. Calibration process is somewhat longer and more complicated and I still don't know if I really miss Huey's ambient light auto adjustment, but in the end, very happy with Eye One.

La Rebel XT tiene 8MP, que es todavia suficiente para todas los sitios microstock. Con esos buenos lentes que tienes, no hay problema, mientras que tomas con suficiente luz. Ahora, puede ser que hay los que hacen la revision y prefieren leer el EXIF en lugar de ver la foto misma y les puede parecer que esta camara particular ya no es tan buena, solo por ser un modelo antiguo . En este caso puedes guardar la foto en Photoshop con la opcion "save for web", esto va a borrar todos los datos en el EXIF y no van a saber con que camara la tomaste...