gnustep, obj-c, and xcode

Hey all,

So I'm diligently out of "Programming in Objective-C 2.0" by Mr. Kochan and I love using Xcode to do my coding. The only problem is that I only have a minimac to do it on. My laptop is a PC. Believe you me, if I had the money I'd buy a macbook in a second. Is there a good way to practice Obj-C programming when I'm away from my minimac (i.e. on my laptop PC)? The two "solutions" I've thought of so far are:

1) Use VNC on my laptop to connect remotely to my Mac. Problem there is performance issues.
2) Use Gnustep on my laptop to write and compile Obj-C code.

For 1, is there a way to improve the performance of the remote desktop connection?
For 2, does anyone have any experience using Gnustep? If so, is the coding in that enviornment similar enough to Xcode that it would be worth using?

Thanks!