If you have the seed or know the seed, then you are fine.
It's all you or anyone else for that matters needs to recover your funds.
~BCX~
I am not sure why so many people are talking about a wallet.dat file or QT. Neither of these apply to the OP if he is using electrum. The above is correct, all you need to recover your wallet is the seed.
If you are unable to get electrum to work on your computer then I would suggest doing the following
1 - Read up on PGP, find a gpg keychain manager (that you are sure you can trust) and install it on your computer.
2 - Choose and install a new wallet service (perhaps multibit or blockchain.info).
3 - Find a
very reputable escrow service on the forum with a lot of positive trade experience.
4 - Message them with your problem and ask them if you can give them your seed, and they will return the bitcoin that is in the wallet controlled by your seed.
5 - Once you find someone
very trusted that can do this encrypt a PGP message to the escrow with your seed
6 - give the escrow a newly created address from your new wallet service in step 2
7 - you now should have control of your bitcoin again