Yes, i think there are enough people here who could help you with your networking issues.
The alternative is a bit of a hit-and-miss affair. I've been doing software installation and support since i got back to south africa middle of last year. Many of the network solutions i've seen in my clients' workplaces have been attrocious, and often people have been charged way over acceptable rates for their products, which are often based on older operating systems, with iffy hardware, underpowered pcs', etc. And very often, original OS disks are not left with the customer (which i think is illegal, someone can correct me if i'm wrong). Also, i've seen quite a few examples of technicians setting themselves up as the Admin, and not leaving passwords for the client, so they have to call the techie in each time for basic stuff like firewall permissions etc. for which they are, of course, charged.
Having said that, i've also seen many examples of good functioning network solutions, some of the best and most user-friendly i've seen, installed by technicians who really know their stuff, charge reasonable prices, and provide excellent support.
So if you're going to get someone in, make sure its on a good recommendation.
Telkom - South Africa's Handbrake to progress.