I've never been an RTS man myself. I've always preferred games where you shoot dudes, not games where you tell people to shoot dudes. However all the footage of the Starcraft 2 beta has me seriously considering getting a rig and investing some serious time into it when it comes out, but  since I've never played starcraft before I thought it would be a good idea to try out the original before some Korean guy makes me cry.  
 
First off the opening CG movie has well...dated, I guess I just had to be there in the late 90s to appreciate it. I went straight into the Terran campaign and found the gameplay very easy to pick up despite me having little to no experience with RTS's before, the HUD layout and controls are perfect, plus the graphics have a timeless style that still looks good. 
 
Now the downside, the AI for path finding is awful. The AI gets confused by simple rocks or obstacles that I have to click several times in order for them to navigate a path correctly. Jim Raynor died stupidly because of this; he got rushed by many aliens so I franticly click to get him to drive away back to my army, only for him to go in the opposite direction :@. The lack of variable dialog can get annoying too, I've only been playing for an hour and I'm already sick and tired of the marines saying the same 3 pieces of dialog. 
 
I am enjoying Starcraft but I feel I will enjoy the newer more technically advanced sequel more when it comes out.