screen resolution: XFSetup (probably redhat comes with its own, more comfortable tool, but i donŽt know it
console: between ctrl-alt-f1 and ctrl-alt-f10 you should find several consoles to work with. One of them is your X-Windows, so this is also the way to return.
some cool linux stuff: you can run any program that runs on a console also inside an xterm. (look for "Terminal" or "Shell" in the KDE menu - if i remember correctly, kde has a shell symbol in the quick-start bar on the bottom.)
yes, windows can run a dos window too, but when i said any program, i mean any program, not just most programs!
some more cool console stuff? since you asked (???):
"program </dev/tty1 >/dev/tty1 2>/dev/tty1 &"
lets you start a program anywhere / on any console/xterm, but it "runs" on console 1 (disable the default login/getty before to make it run more smoothly: edit /etc/inittab, make a remark-sign (#) before the line with /sbin/getty tty1 (or similar) - or maybe you have unused consoles already?)
plug and play: yes and no
plug and play hardware works (some hardware claims to be plug and play but in reality is not
), pcmcia stuff works like you are used to from windows, i donŽt know anything about usb though. this leads to my final, but imho most important tip for you:
get a newer version. redhat is up in the 7Žs (i think 7.3, but not sure since i am SuSE user).
youŽll have a more secure machine, more stable kde, more / better applications and support for a much wider range of hardware, eg USB(!), firewire, graphics cards...
besides this: Have a lot of fun!