Cheap Wideish Prime for 100 Euros?

Hello Forum,

After looking at the system for a long time I managed to get my hands on an E-P1. I'm now looking for a cheap wide angle or normal prime. Something in the 28-60mm equivalent range basically - I already have a 50/1.8.

What are the options for about a hundred euros or less? Is an adapted 28mm still the way to go like in the early days of the system? Is small size or even a second-hand autofocus lens possible for this price?

Feedback from Europeans is especially welcome since you'll know how it can be with high prices across the board.
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