afraid of hardware support

hi everybody,
i've been "playing" around with linux already a few times,
now i want to change again to linux, but i'm concerned about support for my hardware.

i've got a nvidia Gforce4 TI 4600 video card vivo, and i want to keep it possible to use my tv as a second screen, (to view movies)

and also a "leadteck TV2000 XP expert" TV card, and offcoarse i want to keep watching TV on my computer, should i have any problems with this using linux? (redhat, suse, with KDE)

just a hint, if you're going with SuSE, Don't follow the special SuSE instructions for installing a graphics driver.
I don't know whether a ti4600 is covered under the latest driver, or if ye need the legacy version.

Just (make sure ye got kernel source installed first) download the package, do an "init 3", type "sh NVIDIA-Linux-x86-1.0-7184-pkg1.run" in whatever directory it's meant to be in, follow the prompts, and don't bother trying to download a precompiled, just compile yer own, it takes less than 5 minutes on a p3-600, and it's all automated.

says nVidia:
"...then edit your X config file as appropriate. If you are using a Linux 2.6 based system, type "modprobe -q agpgart", first. See the text README for more detailed instructions."
i don't know what that is, never done it, works fine anyway...