Inspiron 530 Fittings.?

Well I am planning on getting the XFX 6950 2GB GDDR5 memory and its double dissapation.
--My board is the G33M02 - Currently has the 5670 1GB and e8400 and 400 watt Diablotek PSU.
So it will take up most of the room in the case. Ive done measurements on all the stuff, just wondering about my CD/DVD drive - Via sata cables beside the x16 lane for where it goes and this card is a tad over 10 inches which is longer than my board.

The 2nd sata cables are lower than the others which partially makes room but Im not sure if it would work.
Ive moved the CD drive down in the 2nd CD drive bay
Then I also moved the HDD into the 2nd HDD drive bay. Then connected the SATA cables up.
Then the Orange SATA cable(CD drive cable) reaches SATA plugins. Smoothly w/o the 6950 in there. but when it arrives its going to be a tight fit. Debating if I should buy a longer SATA cable to extend overtop of the GPU or possibly under the card. Like i said I dont know much about it.

The Future PSU is a ATX XFX 650Watt PSU it has the 2 -6pin PEG connectors for the card so that will do.

So have any of you guys done the same or know something I don't or just something ... lol.

So ya plz assist me

Your PSU purchase should be first. That PSU im highly doubting could run a 6950 at any sort of consistency. Your PSU should always be the best or one of the best components in your system. It is the heart of your system.