I'm still looking around for good deals on things like eBay, think I'm definitely looking towards the plank type desk from the image I posted before this though, but from what's been said it's very true that it would be a dirt trap and things would be going in them gaps, and that it would be a wise idea to put a cover over it. I've been looking at glass and I never realised how expensive it was, especially for the size of desk I'm wanting, does anyone know what acrylic is like as an alternative? Is it commonly used for tabletops or not?
About the curving of the edge, you recommend a router, however After looking at videos of how it's done on YouTube I'm not sure if I'm 100% confident, and one big factor putting me off is the cheapest one I can find is £25. Any alternative methods or is it possible to buy it with the edges like this?
Also in reply to Andy about the honeycomb ikea desks, these would have done perfectly however after looking into them, I've found out it's pretty hard to cut into them to make holes for cables from things like keyboards and monitors. I've also heard they can bow quite easily, however it doesn't sound like it in your case if you can actually climb on it.
I have looked into that tulip wood and it would indeed need painting which I am not wanting to do, I'm wanting to keep it natural and be able to see the grain, but still a good suggestion though!
I'm liking the idea of buying pine planks, using kreg jig and wood clue to attach them, I love the look of it, it's just the routing and acrylic I'm not sure on now, any ideas? I'm also looking around loads of areas trying to find cheap wood like what's been mentioned, if I can find some sort of hardwood for a cheap price that would be brilliant, but it takes time.