Hi all, i'll keep this as simple as possible. So my friend that i met over the internet rooted my Samsung Galaxy S2 for me. Now, seeing all these INCREDIBLE home screens in this forums threads, i REALLY want a 'custom ROM' (whatever that is), and something on the lines of 'MIUI' style if that makes any sense. 1) What is a ROM? 2) Is it complicated to install into my phone? 3) Is it risky to put a ROM on my phone? 4) Once i've got the ROM, what do i do now? Can i customize it the way i want, through my phone? Or does it get very tricky to choose and install a preferred design? 5) What effect will it have on my phone? For example, battery life. 6) Any other information i should know about? Thanks so much! P.S. Wow, this site is looking fantastic! Bravo.