If the cost of Visual Studio 2008/2012 is an issue, Gary should be able to use SharpDevelop (free). AFAIK, Sybase doesn't care what the GUI development tool is as long as it uses a recent .NET SDK. YMMV
"#develop (short for SharpDevelop) is a free IDE for C#, VB.NET and Boo projects on Microsoft's .NET platform."
