I have made Internet purchases of 'tickets' for RyanAir (twice) & EasyJet (London Luton-Madrid) with no problem. You just don't get a 'ticket,' per se; you get a confirmation number: which you print out and present at check-in.
My most recent RyanAir flight Dublin-London (Luton) was 5 IEP plus taxes & fees (total about 19 IEP: $21 USD) - the EasyJet flight London (Luton) - Madrid was 75 GBP (taxes & fees included - about $95 USD). Now there's a new 'kid on the block:' British Midland is inaugurating BMIBaby offering 'lowball' fares from Midlands airport to destinations in Spain starting at 25 GBP one-way. I don't know if any of those carriers pays commisssions to Travel Agencies. Over the Internet may be the onlyt way to go.

[ 01-20-2002: Message edited by: Eddie ]