planning for canada visit visa

[shavi]

HI ,
i am living in uk since last 5 years  i am under tier 1 work visa and my  leave is about to expire after 8 months , right now i   am planning to   go for holidays  in jan 2010  for 2 weeks 

my question is that
1  what are the  visa  chances  ? would cic  consider  my  leave to remain  short   as it got just 8 month left and possibly refuse my application  ?
2 if i got the visit visa , can i go there and get married  ?
3  on visit visa  in canda  can i change it  to sutdent visa  ?

 any  advise would be nice

thanks
Shavi