Do ALL providers (apart from NTL and wireless) lease lines from Eircom?
Apart from non landline based broadband options (wireless, cable, satellite etc.) most telcos probably still use eircom lines/exchange equipment but this is changing (e.g. I know that esat BT have their own lines/exchange equipment in some cases, at least for business symmetric SDSL packages). One way or another, right now you will still have to pay line rental to somebody - eircom or another telco if/when they get the line "unbundled" - at a rate of c. €25 p.m.