Warning: in that case, you should ignore my earlier post as those devices don't speak VDSL2. I just picked kit that is exceptionally good on an extremely long line, assuming you were an ADSL or ADSL2 user.
If you may need VDSL2 later on, it might be worth taking a look at
* ZyXEL VMG1312-B - a router that speaks VDSL2 and ADSL, also does wireless LAN too. I have not tested one of these devices yet, so ask on the forum. This box can, I believe, also be a modem-only device too. So a single box solution for xDSL (or two box solution if you prefer to use a different router.) available from
http://aa.net.uk/broadband-accessories.html* the Draytek Vigor 130 - a modem, not a router. So you will need an appropriate router of your choice. Speaks VDSL2 and ADSL/ADSL2, so you can use it on an FTTC line as well as traditional ADSLx.
I have one, not given it proper testing yet, it may be slower than the DLink DSL-320B on ADSL on my ultra-long line, jury still out though, as it may be that it takes more time for BT DLM to adjust.
(Note : 1. Speaks PPPoA over the line, which is a very excellent thing. (Advantage - efficiency: faster and cheaper). Draytek devices are unique amongst DSL modems in this respect. 2. Allows full 1500-byte MTU / MRU, even on BT 20CN. Advantage: no risk of incompatibilities with stupid servers. Btw Your router also needs to support 1508 byte PPPoE frames if you are to be able to use this excellent feature. Also, the modem needs to be on the latest firmware.)