So we're moving to VOIP through Xnet and I'm just wondering about hardware options.

At present I have a Dynalink RTA1025W for internet (wired and wireless) but it can't handle VOIP. There's no issues with adding a SPA2102 (or a different VOIP adaptor) to the mix but I'm wondering if there's an all in one or better option to consider with wireless N now in play.

At this stage we don't have a huge need for Wireless N, and infact it would probably mean buying adaptors for a couple of machines if we wanted to utilise it. However, I'm wondering if it's worth future proofing now if I'm going to spend ~$100+ on a VOIP adaptor. Any advice\opinions?

Thanks