The best interest rates on Instant  Access Deposit accounts in Ireland:      Rates checked February 1st 2012

AIB Direct  3.1% Easy Access Reward Account. Min €1 max 100k (call 1850 44 22 22)

RaboDirect 3.1% (online only). Max €20k

AIB  Deposit 7:    3.05 % on all balances up to €10,000 (not quite instant access – 7 days notice required) must have another AIB account.

Nationwide UK (Ireland ) 3%  (Min 2k € Max 2m)

KBC 2.55%   10k min

PTSB   Online  Only  2.5%

NIB 2% E-saver Account:  Min €1 Max€50k.