I have had Siamese cats all my life. They're always best as pairs, as they need company.
Dh and I got a pair, brother and sister from the same litter, 12 years ago. Leo was an enormous chocolate tabby point, really cuddly and affectionate and his sister Muscat is a chocolate (althrough looks more lie seal) point.
Sadly Leo died 3 years - he had kidney failure, which was young, but not unheard of, to happen - it can be a problem with the pedigrees.
We rang his breeder, who has become a firend and who had just started breeding again, and she had one kitten left in a litter which just about ready to go (although no blood relations to our irginal two). She had been going to be keeping her for breeding, but becasue it was us, rationalised letter her go as she was a small kitten from a samll mother, so probably not good breeding stock. (just as well, as she is still tiny). By pure coincidence, she is alos a chocolate tabby point - and her pedigree was already Cleo (spooky!), so we kept it.
I think she cost £200, but it might have been £300. But that also included a full set of injections before we picked her up.
You're only allowed to get themwehn they are 12 weeks old.
A good breeder will "audition" ypu - go and see the kittens, see which one you like (they'll tend to choose you) - and at the same the breeder will be checking you out.
We don't insure ours - with two it would be expensive and we are in the fortuante position that it something did come up, we are able to access the funds to cover it. Even when Leo was being treated, it only came to about £100 for all the saline drips/reydration they tried to see if the kidneys would re-stabilise, before agreeing that the kindest thing to do was to put him down. He used to get into lots of scrapes - infections from fights with other cats (even though he was neutered), but the cost was usually less than the £50 excess that an inurance policy would have charged.
They are outside cats in that they have a cat flap and come and go as they please. They don't wear collars (tried it once and Muscat got herslef quite damaged trying to get it off and had to go to the vet!) but do have microchips.
Boys traditionally have a much wider range than girls - a radius of up to 2 miles as opposed to half a mile, apparently, so if you are worrie daobut them wandering, then a girl is better.
Personally, I find boy cats slightly friendlier and cuddlier. Some epople find SIamese aloof and snooty - but I have alwys found that if they are brought up as family cats, then they are (IMHO) much more friendly than "ordinary" cats - more demanding of cuddles and bit dog like (ironic, as I don't like dogs).
Where do you live. I know in Scotland, someone looks after the "kittening list" - a list of kittens avaiable from reputable Siamese breeders. I don't know who has it now, as we just ring the lady who bred our cats - but that was how we found her initially. We had got names of various people who had kittens avaialble and had gone to visit a few of them.
When Leo died, we would have liked to have got another two, as Cleo often wants to play and Muscat is getting a bit old for all that - but only Cleo was available and Muscat was very lonely for the month she was without any company. We're thinking of getting another one, so that there isn't such an age gap between cats when Muscat does finally go to "the heavy side layer".
Our breeder prefers the slight more old fashined face - not quite the full "apple pie" round face, but not the extremely pointed faces that are the current fashion. But the important thing for you to do is visit the breeder, get to know the mother cat and find out about her temperament, do you like how she looks - and do you like the attitiude of the breeder?
I think I've gone on for long enough!