Looking for a cheap mike for audio recording on my PowerBook

[zen]

No doubt this has been covered extensively in this forum but I'm new to audio recording!

I'm going to be doing a few one-on-one interviews for magazines and stuff, and I thought I'd use WireTap Pro and record directly onto my 12" PowerBook (nice and portable).

I'm assuming that a separate mic is going to be better than the built-in mic, but all I need to do is get a good enough recording that I can make a transcript afterwards. The recording isn't for broadcasting or use in anything, and the only person that will hear it is me.

So if I go for a cheap and cheerful separate mic, what should I get? The PowerBook has audio in next to the headphone socket. I do have a Griffin iMic which I think acts as a pre-amp (if I need a pre-amp)?

Any suggestions welcome. I'm looking for cheap, so up to £20 UK/$50 US would do me.

 

[gotzero]

There are Blue (snowball) and Samson USB mics that are a little more than your price listed, but would be well worth the jump if you can manage it.

 

[zimv20]

(nice and portable). [...] all I need to do is get a good enough recording that I can make a transcript afterwards.

 

[QuarterSwede]

I have to agree. That is the cheapest way to go and it works great.