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#11
I'm with Sky on their unlimited broadband package in what is, unfortunately, a low-speed area until BT get their act together and put fibre-optic cables in.
I had a D-link wireless-g router, which gave me a maximum download speed of 1.5 Mbps and with a connection that dropped on a daily basis.
I managed to get Sky to replace the router with a Sagem wireless-n router and my line speed has increased by 33% to just over 2 Mbps with no dropped connection so far.
So, in answer to your question, a better router should give you a better line speed, but whatever you have you are still at the mercy of what your ISP can provide, which in turn is determined by the current infrastructure.