Best Small (inexpensive) business to start up in Spain?

Have a friend who set up an internet/calls cafe in Spain and has done quite well out of the tourists wanting to check emails and phone home..He set up with a very minimal start up due to the fact that he started off with few computers and built up as he made money..now he makes more monthly than what i can make here in the UK

My question is what other low-cost start up buisnesses would be good to start up in Spain?..would ideally like to start with something like an internet cafe (small set up costs) and with the gradual profit of that, eventually open up a bar/restaurant when I have more capital to invest.

would also like to point out that i have lived in Spain before and speak the language so please no points about "how hard it is to start a business in a new culture with new language etc"

Any Ideas?...Experiences?

Cheers!