I agree with dralarms that the All In One pump is a great investment. However, it would not be my first purchase if I only had the basics. Everything will depend on how much wine you plan to make. One or two kits per year, you are probably okay with what you have. If you are like most of us, it will be more like 10 or 20 kits per year you will need some other stuff. I found the following helpful when I got back into wine making:
more carboys of different sizes, e.g. 6.5 gallon, 6 gallon, 5 gallon, 3 gallon, 1 gallon and 1/2 gallon jugs.
holed stoppers for the above
airlocks for the above
a second fermenter (if you plan to make larger than 6 gallon batches, you might consider a 20 gallon fermenter)
potassium metabisulfite, 1 lb bag (for mixing up sanitizing solution)
an Auto Siphon if one did not come with your kit
a second hydrometer and a second thermometer (assuming you have one of each in your kit. If not, buy two of each)
carboy and bottle brushes
bottle rinser/sanitizer (if one did not come with your kit)
beakers 50 to 500 ml, flasks 250 to 1000 ml and a 250 ml graduate
If you are handy, make yourself a bottle drying rack. If not buy a bottle tree.
Carboy drying rack is helpful.
A floor corker.
An All in One pump with racking, filtering and bottling capablities would be great and will cost you about $300.
Note also that you need not buy all this stuff new. Check CraigsList, eBay, garage sales, etc. I just picked up a great looking 5 gallon Italian carboy for two bottles of wine from a neighbor having a garage sale.
