Living so close to Stoney & Dosthill and only diving Uk quarries so far I have a ex hayes document crate (think gear gulper only yellow and cost £4.50

off fleabay) which I transport everything in except dry suit. This also keeps water in the box and off the boot carpet on the way home as well, and I find this bloody brilliant
I am now booked on 2 trips, the first to Plymouth 2/3 April and am planning to do al least 10 trips this year.
I therefore have 2 questions:
1. is my gear guler imitation suitable for hard boat diving or should I look at a bag?
2. If I should look at a bag - any reccomendations and what features to consider. We are currently considering 2 weeks in lanzarote in June so what ever I get should be suitable and tough enough to take the abuse of baggage handlers at heathrow!
Cheers
Chris