First of all, it was a great result for the PES in Ireland - they've now got 3 seats in the Republic, which is a surprise win, really. It puts them only one behind the EPP. ALDE have done well in Ireland too - they're up 3 to 4 MEPs, due to Fianna Fáil joining ELDR in this parliament (the other ALDE MEP is an independent that isn't an ELDR member).
For pro-Lisbonites, it was a good election, even though Lisbon wasn't really an issue, since the anti-Lisbon MEPs did quite badly. Kathy Sinnot (InDem co-leader) lost her seat in Ireland South - online glee here (http://stephenspillane.com/blog/index.php/2009/06/ding-dong-the-witch-is-dead/) - and Mary Lou McDonald (SF/GUE-NGL) lost her Dublin seat. Though Joe Higgins (Socialist) is equally as anti-Lisbon as MLM, her scalp is of higher value given her prominence in the Lisbon I campaign.
Of course, the failure of Ganley to win a seat is the clearest victory. He had called for a recount (during his appearance on the BBC he made out as if the officials had spotted a problem and called for a recount rather than him being the one to demand it), and the result of this has produced my favourite line of the elections:
"However, that recheck found that Mr Ganley had been awarded 3,000 extra votes in error."
Around Europe, Libertas were defeated left, right and centre - they've only managed 1 of their desired 100 seats, and that was de Villiers in France, who was an outgoing MEP, and likely to have been re-elected simply on the local support he had there, rather than on the strength of the Libertas brand.