quick charset toggle

[Baurjan Ismagulov]

hi,

i have to change my charset frequently. currently, i'm typing ":set c<TAB>="<charset> 
(occasionally, "charset" is the first keyword completed). but after that i have to 
type "iso-8859-9" and "koi8-r" manually each time, which is quite annoying. how can i 
speed up this process?

btw, i still can't mix two languages in the single message. mime gurus?

thanks in advance,
baurjan.