Still Tempted by Kettlebells

I have been toying with the idea of getting into kettlebells for some time now but keep resisting, mostly because I'm cheap!  Unfortunately, kettlebells are expensive and kettlbell DVD's seem to be even more so.  I was able to put the idea to rest for a few months and be satisfied with my predominantly bodyweight workouts.  However, I'm starting to feel the need to kick things up a notch and wondering if adding kb into the mix may be the way to do it.  I've realized that I really like doing paper workouts better than following along to a DVD so I could definitely save some money there.  There is also a ton of free information on the web giving tutorials and pointers that I think would be as helpful as any DVD out there (as long as they are reputable/trusted sources like myomytv.com's series of tutorials). There also happens to be a RKC certified instructor just 15 minutes from my house that gives intro classes that I've considered signing up for (which I think would be a better use of my money that the DVD's).  So, on that note, I decided to add some dumbell swings into my workout today to get a better feel for what kb work might be like.  I tried this a little bit a few months back but I've sought out a bit more info and felt a bit more informed this time around.  Overall, my first impressions were pretty good.  I'm interested to see how I feel tomorrow and if I have any DOMS in places indicating that the swings worked my body in a new way.  Unfortunately, I wasn't thinking and also added some new TRX exercises in so it may be hard to determine what effects each has on my body.

Workout: 2 Parts
Part 1: 3 minutes of dumbell swings- 10 right, 10 double, 10 left, 10 double, 10 right, etc.

Part 2: Intervals of 15/45 1xs
1. TRX Low Rows with 3 Hand Positions
2. TRX T's, I's, Y's,
3. TRX Low Deltoid Flys
4. TRX Overhead Back Extensions
5. TRX High Torso Rotation - right
6. TRX High Torso Rotation - left 

Repeat Part 1
Repeat Part 2
Repeat Part 1
Repeat Part 2
Repeat Part 1

Total Workout Time: 30 minutes
Workout Stats:
Avg. HR- 129
Max. HR - 163
Min. HR - 64
Time Above Zone - 9:15
Time In Zone - 18:26
Time Below Zone - 5:46
Burn - 18g, 139.3 Kc

As you can see, this workout didn't work my heart quite as much as some I've done lately.  However, that isn't to say that the swings can't do that.  In fact, I think they actually were doing a good job of raising my HR it is just that the TRX workout really brought it back down.  I was okay with that though, since my main goal for today was to get some good upper body, pulling work in.