The DG834G V3 wasn't a bad router, but it may not last long (or it might last 10 years). You might squeeze a little more speed out of a newer model, but I doubt it will be a life-changing difference. However, if you're on TalkTalk LLU I presume you have an ADSL2+ connection. Some other TT users with longer lines have found that forcing the connection mode to ADSL2 makes the connection more stable and a bit faster. I'm not sure if you can do that with the DG834G V3, but it would be worth trying if you can.