I got a Tacx one from CRC with 10 resistance levels for £125. I don't know how it compares to others, as it's the first one I've used. But it seems pretty good & gets good reviews.
Not that this helps you decide on choosing between the two above!
I use a couple of phone books to prop the front wheel up & I keep meaning to get some kind of towel thing to stop me dripping all over the bike. Might make one myself from an old towel.
PS – if you do end up getting the Tacx one, make sure you read ALL the instruction first & use the correct adaptor for the flywheel assembly. I didn't and then had to take it all apart & start again!!