1) Will it be good for taping metal bands? Not robots
, bands like Metallica 
2) Does it record well with the internal microphones? If not, what mics work well with it?
3) Is it worth the £200?
4) Does anyone have any sound clips
Help is appreciated, thanks in advance 
Do not waste your money on this toy.. its cheap plastic case and cheap build quality leave a lot to be desired not to mention its very easy to overload mic preamps and you have a recipe for shit recordings... EDIROL R-09
chris are you talking about the R09 or HI-MD...overloading mic-preamp?
EDIT: seems the topic starter changed the title of the thread ESSENTIALY! HAHAof course u can tape metalbands on line-in with a battery box and a mic which can handle very high soundpressures.
I would choose the HLSC-1 for very loud shows.
NEVER tape too close to the PA, better find a place near the soundboard.
The internal mics can be used for soft to moderately loud club shows BUT quality external mics always sound better

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For really loud stuff external mics are a MUST.
I really like the internal mics for ad hoc taping of sounds ie. for meetings or atmo-taping.
no need with external mics...just hit REC and enjoy.