Firstly, I apologise for asking for knowledge that is most definitely already available but I would like definite answers! 
My main interest is building custom (pedal) bikes such as those from http://www.atomiczombie.com/
I live in the UK.
I've seen the Aldi welder and the topic here about it. Something tells me it probably isn't the best thing to buy. I would like something under £200 and is a gasless MIG. Am I being realistic? If so what would you recommend?
Thank you very much!

My main interest is building custom (pedal) bikes such as those from http://www.atomiczombie.com/
I live in the UK.
I've seen the Aldi welder and the topic here about it. Something tells me it probably isn't the best thing to buy. I would like something under £200 and is a gasless MIG. Am I being realistic? If so what would you recommend?
Thank you very much!