Hi, I don't really know much about speakers and audio equipment, but would like to get better quality sound from my music. For the past couple of years, I had been using my laptop with some Logitech X-230 2.1 speakers to play music (MP3, mainly ripped to at least 224kbps), until recently, when I decided to connect my old Panasonic SC-PM17 mini system (about 5 years old). The sound quality is much better, more detailed and treble is crisp (such as cymbals, I listen to mainly heavy/death/power metal and hard rock). The only thing is the bass is a bit lacking (especially when listening to music with double bass drumming) and could do with more punch. So, I was wondering if it is worth upgrading the current speakers to some nice bookshelf speakers to get better sound and a bit more bass? The hifi has a bi-amp system and bi-wired speakers (50w, 6 ohms) each with a 9cm mid range/woofer, 5cm tweeter and rear port. On the back of the main system, there are high and low frequency connections for unterminated wire (spring clip type). I am thinking of maybe spending £100 or so in the near future on some nice bookshelfs (I am a student in 1st year of uni, so I don't have loads of money!). Something like the Mordaunt Short 902i (which are bi-wirable and have 100w max power). Then maybe after a year or two, I would like to get an AV amp and connect that to my MacBook Pro's optical out, and get a centre channel, sub and floorstanding speakers for front channel (and use the bookshelfs for rears) for a 5.1 surround setup. Thanks in advance for any suggestions or advice!