SLR questions

[toddnbecka]

I'm wanting to upgrade from my Panasonic Lumix FZ5 point-and-shoot to a digital SLR. My main complaint with the Panasonic is the lack of manual focus and shutter speed settings.
So far I've only looked at Canons, and have been wondering what the difference/s are between the Powershot and Rebel XT.
Also wondering whether it's worth the extra $$ for the Rebel XTi w/more megapixels.
Should I be looking at different brands than Canon? (Confusing enough for me with just that one...)
I definitely want something suitable for macro pics. What sort of lens would be good for that?
Would it be better to buy a used camera body and new lens/es, look for a combo, or just buy everything separately new?

 

[maddog10]

The body that you buy isn't as important as the lenses and flashes. Even the entry level bodies are more than capable of taking excellent photos. For aquarium photography, remote flashes are your best investment. You want to be able to place at least one flash over the tank, being able to add a 'fill flash' in front of the tank is a huge bonus. Wireless is the best choice, but a wired flash will also work, you just have to be a little more careful. A dedicated macro lens in the 60mm or 100mm range will give you the best results, if close up shots are what you are looking for. Canon and Nikon are the two major brands and each company offers similar products. In the long run, choosing from one of these two will be your cheapest alternative. As with everything, it is buyer beware, but good deals are out there on used equipment.