HELP !!!!

[mikethebike]

Hi orchid lovers.New member here looking for a bit of help.ive grown a couple of orchids before but have recently got serious about collecting and growing more.I already have a love for cacti and other house plants and have good general knowledge.And 2 good orchid books.
Ive bought a blooming size Cattleya Intermedia thinking it needs re-potting as it looks to have run out of space.Its a good size plant in a 4" pot,but the roots have a vice-like grip all around the tiny pot.it has been hanging all its previous life but i need to sit it in a pot/vase/bowl or similar to sit it on a windowsill..should i ..... A.put it as it is in a bigger orchid pot/or similar and surround it with bark.B,gently break the roots away and re-pot in the bigger pot.or C ,do nothing ! .Any and all ideas regarding potting on,care,and presentation of the plant much appreciated.
Michael.