too bad i didnt see this earler. tim just told me you were looking for a camera.
i didnt read everyones comments, but a few things i did want to give an opinion on:
my main beef w/ sont is crappy high iso performance. i do a lot of low light shooting so i wouldnt be able to deal with that. not to mention the lenses. the older ziess/minolta stuff is nice but its all manual focus, and probably manual everything. the newer sony/minolta stuff is either crazy expensive ziess stuff, or questionable sony stuff coat-tailing on the ziess/minolta brand name. and that's info straight from the minolta guys.
i do like the thought of in-camera image stabilization, but even the sony guys know the system only last 3-4 years then its burnt out anyway.
i'm a nikon guy because the build quality is better than canon and they're much better about lens interchangeability. you can slap a 1960's film lens on any nikon and it'll just work. until recently i had 3 1980's manual focus, auto aperture nikon lenses that would still meter on my camera. i could set the aperture (ie, f/2.8) or the shutter speed and the camera would figure out the other for me. all i needed to do was focus it. canon changes their mount setup every few years, forcing their customers to upgrade lenses so they dont get the dreadded e-99 message.
if anyones looking at newer nikons, i would only suggest the d40/d60 if you only plan to get a couple newer lenses to toy around with, like the canon rebel above. they dont have built-in AF motors for non-motored lenses.
the d90/d300/d3 have the AF motor and also have the newer processing engines for the best in low light performance and built-in lens correction, white balance, etc. with the newer engine you can use RAW less because the jpgs are so good.
the canon rebel series (300d/350d/500d etc) is the best way to go if you're not going to go crazy on lenses and just want 1-3 newer run of the mill lenses to toy around with on a non-pro level of use/abuse. they have the upperhand on video at the moment too. i'd get a nikon d700 (full frame) but i'm hoping they make a full frame video camera soon.
as for CF vs SD, it doesn't matter. you can get CF>SD adapters for $20.
i run all sandisk extreme IV's, one 8gb CF card and 3, 4GB SD cards with a CF>SD adapter, all works out fine. i get about 2000 raw photos out of all of them. i also wouldnt run one giant card. its definetly easier but they do fail reguarly. you wouldnt want to be in the middle of an event or a vacation and lose both all the photos you shot until then, and the ability to shoot any more. if you have to change out cards every ~500 photos then that's the most you would lose.
as for your list pedro:
if you get a newer tripod make sure to get one that's
1. not plastic legged
2. has a quick release head
and preferably has snap down leg locks instead of thumb screw style ones. saves time.
get a multicoated UV filter for all your lenses. a non-coated one on a digital camera will reflect light back into the camera and produce flare/ghosting.
what were you looking at for other filters? photoshop takes the place of filters for most people. i did just order an ND filter though, that's one thing that's our of the PS wheelhouse.