Hi,
Glad to see that you've realized that internal mics are rubbish.
As much as you don't want to have to deal with power supply requirements, the best results are yielded with a battery box at the VERY LEAST. There are many options out there that aren't much bigger than the size of the battery so if you're afraid of having to smuggle too much gear into the venue, don't. The battery boxes that are out there will save you from distortion if you ever go to a smaller club and always ensure that your mics are receiving the right amount of power. I will -- and many others around here will, too -- suggest that you buy a battery box at the very least.
So you want to spend about $150US all-in. Considering shipping to Europe will run about $25 on a good day, you're not leaving yourself very much room for the cost of mics. I've used some SoundPros gear and am not a fan. I used to run the SP-CMC-8 and was never really sold on the sound captured with them. These mics were an older version using the AT-933 capules which many deem to be better than the AT-943 which is currently used.
For Microphone Madness, I'd only touch their "Highline" series and nothing else. Cheap mics sound like cheap mics (unfortunately).
Being in the first rows using cardioids can be a little tricky (as can using omnis that close as well). The best recordings are usually made from about rows 8-15 (or even further back) at larger venues.
Cardoid mics will deflect more of what's around you but have a less natural sound (to my ears, anyhow). The advantage is that talkers, screamers, and singalongs will be caught less than if you used omnidirectional mics. Omnis sound more natural to me, however, they will pick up talkers, screamers and people singing drunk right next to you.
The self powered mics you mention -- EEEEK. If you're serious about recording and heading in the right direction, DON'T EVEN THINK ABOUT THEM for this use.
If you try to use "plug in power" without a battery box, you'll end up with a recording that likely doesn't power your mics fully so the quality is reduced. You could also end up with distortion (brickwalling) as well.
Ultimately, since you want to spend around $150, I'd suggest getting a pair of CA-14 cardiods (or omnis) with a battery box. Chris Church has a couple of "small" options that aren't very expensive. If you're concerned about the size of the mics, you could go with the CA-11mkII cardioids as they're slightly smaller than the CA-14's. For the record, I've done many recordings (both open and not) and have *NEVER* had an issue with these and being noticed. Even if you spend $10 or $15 more than you wanted to after shipping, the Church Audio mics are the best bang for your buck in your price range. Just keep in mind that you'll have a lead-time of 4+ weeks before Chris ships out your order as he builds everything himself by hand.
Hopefully this helps (and I'm sure some others will chime in as well).