Cash is a strong keyword and I like the domain. Finding the right end user will take some effort but I think you have some good ideas. Here's are recent 2-word domain names with the keyword "cash" (from
DNSalePrice.com):
Domain TLD SalePrice SaleDate SaleThru
PartnerCash com $110,000 Jul 05 Sedo
NetCash com $75,800 Nov 05 Moniker/DomainSystems
CashPoint com $18,250 May 06 SnapNames
CashBase com $14,890 Dec 06 Operate
EuroCash com $10,444 Jan 07 SnapNames
CashAuctions com $6,155 Mar 06 SnapNames
TeenCash com $6,000 Feb 06 Sedo
MobileCash com $5,500 Nov 06 Afternic
CashNotes com $4,600 May 06 Moniker/Traffic
CashLine com $4,250 Oct 06 Sedo
ATMCash com $3,999 May 07 Afternic
CashWallet com $3,500 May 07 Sedo
CashChoice com $3,500 Jul 06 Afternic
XtraCash com $3,300 Sep 05 EnomsClubDrop
CashView com $3,250 Aug 06 Afternic
GreenCash com $3,000 Feb 07 Afternic
CashWeb com $2,705 Sep 06 SnapNames
MCash com $2,700 Jun 05 Pool
CashParking com $2,000 Jul 06 Sedo
CashYes com $2,000 Jul 06 Afternic
GonzoCash com $1,500 Nov 06 Afternic
CashCorp com $1,500 Dec 05 Afternic
CashGiants com $1,000 Apr 07 Sedo
CashServ com $1,000 Apr 07 Sedo
WebberCash com $800 Aug 06 Afternic
TrustCash com $799 Jul 06 Sedo
AmyCash com $631 Dec 06 TDNam
CashViking com $485 Apr 07 Afternic
PusherCash com $405 Jun 07 TDNAM
CashBlogging com $300 Jan 07 Sedo Auction
CashFlowing com $200 Jan 07 Afternic
CashSaved com $150 Nov 05 Afternic
CashInventor com $85 May 07 Afternic Bazaar
CashVirus com $55 Feb 07 Afternic Bazaar
In my book a number of the above domains are no stronger than yours. Best of luck!