Right, here's the story: I've got a holiday in Spain coming up on the 7th of June. The problem is I've got my 20D with my 50mm EF F/1.8 and only a 512MB CF card. That's not gonna hold a weeks worth of photos. So I'm after a bigger card and I've got filters for my old camera (55mm thread) including an ND filter, which I'll need as I'm planning on long exposures of the sea. I'll get that back, but my circular polariser won't fit on the lens, but could I still use it for some shots when its on my tripod? So here's what I'm after: what size of card should I get. I could afford up to 2GB card but that's all I'd go up to. So should I get 2GB card which is quite slow with the write times (5MB/s) or should I buy the 2GB card with 10MB/s write times? I'm not really after quick write times so I'm not too interested in paying extra money that I can barely afford (after buying my camera and lens, my savings have dwindled). Should I buy an ND filter and circular polariser to fit the lens I have when I have ones that are bigger than the lens itself? Can I use them still? On a security note, should I carry ALL my photographic equipment as hand luggage or is it safe enough to put it through with my baggage? I'm talking the cards too, I remember with film I had to ask the customs people to let me through without it going through the x-ray, exposing it. However, I'm 100% digital now and I don't know what the effects of x-rays are on my camera and the cards. Should I ask the customs to check my cards and camera aren't (dare I say it in the airport) bombs? Thanks in advance for your replies.