Upgrade to 60GB...any contract?

[#1]

Hi all,
Just a quick and perhaps silly question. I've been with Plusnet for years, and am contemplating upgrading to 60GB from 10GB. Will I be locked into a new contract at all?
The reason for the upgrade is because we've recently started using broadband TV. Does anybody have experience with the 60GB limit? Is it enough and are the streaming speeds OK given traffic control?
Sorry about the barrage of questions, thanks in advance 😃

[#2]

First answer is No change to your existing contract
Streaming speeds are excellent (if your line will stand them)
60GB depends on how much you watch - obvious and very unhelpful answer - watch out for HD streaming as that can really hit the usage
Why not install Networx to watch the effect http://www.softperfect.com/products/networx/
If 60GB is really a problem there is always the 120GB option but really you shouldn't need it https://portal.plus.net/wizard/?wizard_id=20

[#3]

we have the 60 gig BB, and for the last 2 weeks ive been streaming the live equestrian events of the Olympics, each one like 6 hours an event, with no problems what so ever,  infact plusnet is the best internet service provider we've ever been with! the download speeds are amazing for us! nikki.

[#4]

That sounds really reassuring! Thanks for the advice 😃