Found these cheap ones at The good guys ..price dropped to less than half as per pricehipster
$6 : Sirix Digital 58mm UV Filter
$6 : Sirix Digital 52mm UV Filter
$4 : Sirix Digital Universal Battery Charger AC/DC USB
$8 : Sirix Digital Multi Card Reader with attached USB cable USB 2.0
I don't know how good these are, but I would buy an uv filter any day to protect my lens
UV filter or Polarised filter?, which is better?
UV filter's do nothing for the image on a digital camera, a polariser cuts down on reflections and glare and changes the image pretty dramatically.
I wouldn't permanently fix a polariser, usually only chuck it on for landscapes or shots around water.
Lens hoods will do more than a UV filter to protect your lenses and improves the lens rather than hindering it.
Lenses don't need as much protection as you think. Even then unless the actual element itself is cracked defects will almost certainly not show up on your photos
The glass UV filters for the most part are not in any way up to par with glass used in lenses especially so for pro lenses.
At the end of the day the cost (~300) to replace the front element of a severely damaged lens usually after years of service seems very reasonable compared with the cost of some of the high end UV filters like B+W, with the added benefit of you getting the best out of your equipment.
At least for me it is. YMMV
There are only three a few products you can buy online in that search result.
updated search result link as it was not coming correctly.. have also updated the individual links in description
UV filters are not worth it even for free.