I looked some tutorials up, and yes, I think I'd be able to do it fine, I'm careful and used to repairing cars without being too gung ho, etc.
Oddly though, the watch arrived today (I'm in love!) and it's actually pretty much spot on size-wise (it's a 'perfect' fit, but perhaps could do with a half-link inserting for hot summer's days?) so I may not have to bother initially...
What I might do, though, and soon, is get a Nato strap for everyday use- the reason being that I'm a writer and type all day with my wrists resting on a Macbook Pro, which is aluminium, and I don't want the bracelet getting scratched on the clasp. The Nato will be softer and not get scratched or scratch my laptop. Then when I want the (beautiful) dressier Omega bracelet I can always pop it back on if I'm going out, or on holiday, etc.
How does one pop the bracelet on and off? Is there a Nato strap which is particularly fine/recommended? I liked the look of the ones here:
http://www.timefactors.com/nato.htm
James