Ok, well, let me see if I get this all:
You had that wonderful HVR-Z1E which was stolen - and it used DVCam cassettes (wouldn't it be nice if Sony made a smaller cam that took DVCam tapes? I still had a few left over from a DSR200a I used to own - but let's face it, those tapes themselves are kinda big) - so although you probably have quite a few DVCam tapes, you have no MiniDV tapes so you're wanting to avoid the expense of a mini-dv based HD camcorder and can't afford to replace the HVR (understandable, those things aren't cheap)
You want something light
Gets a good image
Has the mic input
Headphones out
SD Card based
Within 500 EU
Ok, in terms of price, you'll probably have to look up the cams and find what the going rate is to see if it's in your budget.
Your biggest contenders (IMHO) are Canon, Sony and Panasonic. I'm not real big on JVC at the consumer level (their high end prosumer and professional are kind of nice tho, but way expensive here, so I'm sure outside of the 500EU there) and although I've heard some interesting things about some other brands, I have little experience with them.
I've heard good things about the Panasonic TM300/HS300 and TM700/HS700 (don't look at the 250 I think is the model number, no mic input) - good color, 3chip camcorders with several manual functions some of which are controllable via the ring at the lens. The biggest negatives are poorer low light performance (the chips are smaller in these cameras, but I've heard the TM700 does decently, but I have never tried one myself), and no native P mode (if that's important to you, like 1080p24). I know the TM700 has an accessory shoe, I think the 300 does as well. The one thing is tho it's kind of in a weird location if you look at the pictures. I haven't really decided if I like where it is or not.
I've used a Canon HF100 and it worked really well with FCS - never had problems importing footage and IQ was good. The biggest pain was using manual functions required using the menu system. Some of the newer HF series has a rotary control that I believe can be set to control some manual functions. The HFS series (current models) are nice, HFS21 might be a bit bulkier then you want tho, not sure. Canons are a bit pricey tho - if you can settle for a slightly older model you should get a good deal. Newer models, although more expensive, do offer a native P mode (1080p24). Some models have dual SD card slots that would allow the camera to record from one card right onto the other to allow longer record times. AFAIK, HF(s)200 and higher level cameras all have mic inputs, headphone jacks, etc. - you can always check specs to be sure, but from what I recall, the mic input was something that was kept in the HF line. They also have an accessory shoe.
I can't speak much on the Sonys, I haven't used a Sony camcorder since my TRV460 (D8 recorder) - I've heard they have really good low light performance, but I'm not a fan of the Memory Stick that is used in most Sonys. Also it seems you need to get a higher level Sony camcorder if you want a mic input - when I was looking at Sony in my short list when I got my HF100, it seemed that I had a real hard time locating one inexpensive that had a mic input (I had purchased my HF100 as a refurb, it had already been retired as a current lineup camcorder).
Hopefully that will at least get you going in the right direction. The price is the one thing I can't help too much about since I really don't know what these things sell for there. You might want to look at refurb or recertified cameras as you might get a great deal (as long as it comes with a warranty
).