Hey Z,
Ej16's should work fine. When considering string brightness, it's important to look at the string composition... The EJ16's are phospher Bronze strings and should have a warmer tone.
Here's a quick guide to go by for string materials and the resulting tone
Bronze Wound - The most common material for steel string guitars. This string has the brightest sound when new. Is good for recording and combo work. However it will loose its initial brightness very quickly. This can be an advantage - If you don't want a bright sound, play on these strings for a few hours and they will start to mellow.
Phosphor Bronze Wound - This string is a bronze string with phosphor added to the alloy. This has two primary effects. It will make the string warmer sounding than regular bronze, and will extend the life of the tone (Will maintain its original sound longer).
Silk & Steel - This is a special design string where the unwrapped strings are plain steel and the wrapped strings have a thin steel core surrounded by many nylon filaments and then wrapped with silver plated brass windings. This string is under less tension when tuned to pitch and will soften the volume of your instrument. Also it will be easier to depress the strings. This type of string is not as bright as the other steel string types and less durable. Great when a more "classical guitar" tone is desired or softer action is preferred.
As far as going with heavier strings... Unless your going to change to a set of custom's with heavier top strings and lighter bottom's it really won't help... If you carry all of them up a step it keeps the balance and just gives you more of what you already have.
Since you mentioned that you're a newbie, I have to ask... Do you hold the guitar at a slant so you can see the fretboard Just curious, It's a very common habit for beginners. Doing so often results in over exaturated highs because you strum more in a straight up and down motion and the bottom strings get more contact. Be sure to sit up straight and hold the guitar parallel to your body. Just some thoughts...-Pix
[b][color=#FF0000]If your brain is part of the process, you're missing it. You should play like a drowning man, struggling to reach shore. If you can trap that feeling, then you have something.
[/color][/b] [b]Peace of mind. That's my piece of mind...[/b]