Blockchain (Block 2500)If you shot past block 2500 in the slew of updates to the wallet, here is a link to the blockchain at block 2500 (just before PoS started):
xna_blockchain_2500.zip.
NodesIn case you can't sync, here are a few confirmed nodes:
addnode=182.56.83.165
addnode=212.17.40.234
addnode=208.90.164.68
addnode=24.191.33.43
addnode=5.83.18.254
addnode=24.21.89.229
addnode=208.90.164.68
addnode=197.3.207.58
Edit:
If you are having issues with blocks that never confirm, they are orphaned! Open the Debug Window and type
repairwallet to retrieve the coins for proper staking.
Edit 2:
Current Block as of 2015-05-10 00:23:07 UTC: 2994
Hash: a26fccb2bc462c33f1f466a2a9c72a62e5127fcd9d44d8ad0d738a1ab9783ccc
You can check the hash for block 2994 your wallet's Block Explorer tab - they should match.