Dubl Duck razors are supposed to be very nice razors, however they DO seem to be commanding very high prices at the moment. There is nothing wrong with getting a very nice razor as your first, esp if you tend to take care of your things. If you get that one, I'd recommend getting it honed by a professional for a while, and maybe getting a cheapy to practice honing on. Try and get someone to show you how to hone; it'd be horrible for you to end up causing a lot of hone wear or something.

My first razor had a spike toe and I hardly cut myself at all. You do need to be very careful with a spike, though, esp near the side of the neck.

Good luck with whatever you decide on and good on you for starting out with a straight so young...