Yeah. Separate your data from the code. The way you're going at it is going to make you sad, if only because it's really tedious. What you really want is some code that looks like this:

for each spawn in level.txt

enemies.add(spawn.time, spawn.x)

Even better would be using a visual editor to generate the map that you're loading in. For 2d top-down stuff, I've used at different times the XML and Lua exports from Tiled before: http://www.mapeditor.org/

Here's what a "level" looked like in my asteroids physics game: http://dl.dropbox.com/u/664907/Screenshots/qlz6.png . Every half second, my game read in the next line from the script and spawned those asteroids just above the screen. Tiled was great for organizing that stuff.