No worries man! I listened to some of the tracks you posted, they sound great, your on time, you pull out nice beats and fills, good stuff all round. It really does sound like your left foot is miles behind your right, your right foot sounds great.
I can advise you on a practice routine, it will definitely kick your drumming up a notch. There are so many different ways to approach your regime, and there is so much you can practice. However I tend towards simplicity and focusing on the basics because you want to spend at least 5-10 minutes on an exercise for it to really make a difference, and the longer you spend in sitting the better, so it makes sense to focus on a few basic patterns.
For you I would say try to practice the single stroke roll with your hands and feet at the same time for 20 - 30 minutes a day, pick a speed where you can keep it going for that long, from the sounds of things 60-70bpm will be a good start, like I said before focus on keeping things even and relaxed and work with the rebound of the snare and the bass drum. There are loads of exercises for working on weak limb's, most of these are called 'killer' exercises, here's an example of one...
http://www.drummerworld.com/forums/showthread.php?t=32077
And derek roddy has some video's that show a similar kind of thing, but it's more involved, there are several parts to this video so look for the other parts after this one...
As for rudiments, here's a list of them...
http://rudimentstudies.com/rudiments.htm
The only ones you really need to focus on are the single stroke roll and the double stroke roll, most of the other rudiments are merely combinations of these (apart from the buzz roll), so once you get a good single and double stroke roll down then you should be able to handle the rest of the rudiments. Most people also practice the parradiddle, which is basically a combination of the single stroke and double stroke. Singles, doubles and diddles are used all over the place in most forms of music, both in beats and in fills (parradiddles and their variations make great fills), however in metal most drummers just single stroke, so really it's up to you as to whether or not you pick up the other rudiments, it will certainly go along way to taking your drumming to the next level.
When you first start on double strokes, you will play each note directly and will see that there is a limit to how fast you can go with this method. To get faster you need to learn how to use bounce to produce the second stroke, there are many techniques for the hands and feet that achieve this and allow you to do double stroke as fast, if not faster, than you can single stroke. The main ones are push/pull for the hands, and heel-toe for the feet, I can post some youtube video's if you'd like.
Practice routines are good, but there are two things that really helped my drumming out, the first one was totally geeking up on drums, really immersing myself in them you know! That has had the biggest impact on my playing, so spend an hour or so a day trawling drum forums (drummerworld is best I've found, there are loads out there though) and watching solo's and tutorials on youtube, you'll be surprised how much you pick up from forums and how much you absorb from watching solo's and whatnot. Secondly start playing to a variety of music, if you don't do so already, the best drummers out there know several styles and blend them all together.
Sorry bit of a rant there, hope it helps.