2 questions re RAID

No responses to my earlier post, I'm assuming because OS X experience is rather thin in this group ;-) So a couple of
morespecific questions: 

1) Is my impression correct that given a choice between Areca & Highpoint, it's a no-brainer to go with Areca?

2) I understand why RAID 5 is not generally recommended for good db performance. But if the database is not huge
(10-20GB),and the server has enough RAM to keep most all of the db cached, and the RAID uses (battery-backed)
write-backcache, is it sill really an issue? 

--
Scott Ribe
scott_ribe@elevated-dev.com
http://www.elevated-dev.com/
(303) 722-0567 voice