Please have wallets (at least Windows) ready and at least one pool set up before launch (and not like 15 minutes before so everyone is scrambling and it becomes a train wreck).
I know no one likes premining but I would like to recommend mining a few blocks beforehand so that it is tested. Maybe set the reward for first X blocks be zero or really small values.
Really the biggest things to me though are transparency, not rushing to meet a deadline, and frequent edits to first post that explain the current state of the coin. See the ronpaulcoin as an example.
Way not make a tweak to the scrypt-jane algo for the first 10000 block's, so only wallet is able to mine. Then we will have a soft start, and no rush for pools. The coin will settle, without the trouble with pools from start. If not, the first pool to compile will win all the first coins. And every one not on that pool will scream unfair launch.
Look at Vertcoin
https://bitcointalk.org/index.php?topic=404364.0 They had "CPU wallet only" from the start, and I think its one of the smoothest launch I have been on. And the coin is going very well
Awesome advice Nick & KJ let me look into that.