I have standard apple earbuds which are fine for traveling and being out and about. but when i'm settled down at my place i'd like a pair of headphones that sound great with portability not being an issue. i don't want to spend over 100 dollars and would definitely like spending less. i've been looking at grado's sr60i and they look great but it seems like they don't have good bass and that's not really what i'm looking for. i listen to lots of rock, alternative and hip-hop and i'd really like the bass for hip-hop. also, i've heard that the grado's require an amp to sound their best and that seems inconvienient seeing as i'm completely ignorant about all these advanced sound things. If i could get something that simply plugged into my ipod touch that'd be wonderful. thanks in advance for your time! i'm excited to hear what you guys have to recommend.