Recommendations for broadband provider..?

Iam looking for high speed internet connection and am considering the undermentioned: -
Digiweb / Perlico / irish broadband / gaelic internet

Just wondering if anyone has had any good / bad experiences? A few people in work were saying to keep away from Perlico...

not sure about any you mentioned but i found BT cheaper than eircom by about 10 euro a month for 2mb connection