hey everyone, yesterday evening i went to my local Guitar Center, and played through both the GK 700 and 1001RB-II, running into a GLX410 - 8ohms. They both sounded great. They had all of the amps going through some weird amp/cab selector. I imagine since i was playing through and 8 ohm cabinet, both the amps were only running at 8 ohms. my main problem is now deciding which head i should get. the 1001RB-II at 8 ohms (480 watts) seems like it would be plenty loud for my needs. (metal band, rock band, and jazz/hip hop band.) my debate now is, would it be better to just get the 700RB-II and run it into a 4ohm 4x10, meaning id always play through 480 watts, or get the 1001RB-II and run it through an 8 ohm 4x10, leaving me the option to expand to a more powerful 4 ohm cabinet in the future. I honestly cant see myself needing the 700 watts for now. but since i like to think far into the future, i like to know that id be safe to expand if i wanted. please help me out, and feel free to give your 2 cents about other options. thanks!