Anyone know if SAMWHA Caps are Good??and other questions??

Hi Folks, I just bought 20 Samwha 10,000uF 63v High G Low ESR 85c Electrolytics for about $1.25 each and was wondering if these are good quality Capacitors?? I was going to use them for Power supply Filtering….

They were a Fraction the Price of any other Caps in this Value I could find so I bought all I could get from this seller…

Here is the auction I got them from which has a pic of the caps….

http://cgi.ebay.ca/ws/eBayISAPI.dll?ViewItem&ih=020&sspagename=STRK%3AMEWN%3AIT&viewitem=&item=300046047117&rd=1&rd=1

Another question I have is sometimes I see schematics for Power supplies were the Filter caps go between the + and – supply rails as opposed to going from the Supply rail to ground…

Are there any advantages to doing it this way or any disadvantages??

Also If I were to do it that and Put say a 10,000uF cap between the + and – Suply rails would that constitute 10,000uF on each Rail as each rail is connected to the same 10,000uF cap?? If so then it seems like a Good way to use half the Caps and get the same filtering, Or am I totally off base here…..

Thanx for being gentle with this newbie….

Cheers