OMG! I have to go gamble right away and win money too!
Ok in all seriousness I strongly urge people to be careful when gambling. It can be fun but make sure you limit your losses. I look at it as entertainment, not investment. So if I want to gamble I would give myself a reasonable budget like $10, and when that is gone I am done. Numbers don't lie and most people will lose money in the long run. Be careful guys!
About offline storage, the trezor is excellent but also expensive. Ledger is cheaper and makes two models that are basically the exact same thing, but one is snazzier looking. The less snazzy one is much cheaper, but personally I would get the more expensive one. I tend to break things and the expensive one looks much more robust.
The ledger is supposed to be less secure than the trezor, but from what I understand the only downside is that it can be vulnerable to malware during installation. So make sure your machine is clean. But to be honest I didn't do much research, so if you have questions then ask the company. I believe they are active on these boards. Here is a link to Ledger and Trezor for convenience:
https://www.ledgerwallet.com/https://www.bitcointrezor.com/I believe both are available from third party retailers like amazon and ebay.