Citrix vs Remote Office

We are a three office CPA firm that is currently operating on three seperate networks – NT4/SP6, NT4/SP6 and Windows P2P.

Currently, the two remote offices can connect to the home office via VPN (cable and dialup internet connections) sessions with limited functionality.

We are looking for options on how to provide the remote offices with a more robust connection, and perhaps re-centralizing the databases in the home office.

To this end, any thoughts/opinions on Citrix/Terminal Server or a WAN alternative? Other ideas

TIA,
Byron