Compatible cartridges for Epson Photo 700 available from Choicestationery.com twin Pack £4-29 + free Delivery. I use Choice regulary for my ink supplies and have had no problems using their compatible cartridges
Have a look at the Canon i865. It produces some really great photos ,comes complete with a comprehensive software package and can be purchased for about £133 . click here or click here . For cartridges look at click here
The Inksaver programme as been aired on this forum on a number of occassions, so a forum search will bring up some interesting facts.
The Inksaver programme will not work with Lexmark products, but it will with many other brands. If you want to make a great saving on the Inksaver product, try Serif 0800 924 925 who may still have this available for £9.95 plus £3.00 p/p, this also includes a Serif PhotoPlus 8 cd in the package.