for starters i think the only camcorders with HDMI output are HiDef units. So I don't think you will get HDMI for less than about £1000.
DV camcorders are still pretty decent, tapes aren't that cheap, but they are readily available so you don't need to worry too much about running out of space, unlike HDD based camcorders. HDD and DVD recording also uses MPEG-2 as opposed to DV, so you have much higher compression ratios and footage that is less editable (DV is frame acurate, MPEG-2 is only partialy frame accurate, often limited to the start of a 15 frame block - known as a GOP or Group Of Pictures). DV is about 14gb/hour.
If you can get image stabilisation for that money then go for it, well worth it.
Can't think of anything else, but i'll post again if i do
