amber - blood pressure is a bugger 
- its one thing after another isn't it?, you poor thing. Hope they get it sorted for you soon.
Good thoughts to the twins Gig, and candle lit here for them. What a worrying time for your friend, and such a big thing for little ones to go through.
Ned - I certainly felt very apprehensive before my first chemo too, - it's a big step into the unknown. But as words of comfort, chemo units are usually very friendly, pretty informal places, with kind staff, and also by the time you've done it a few times it'll become a routine and you'll feel like an old hand at it 
Also - I was told, space very limited, DH couldn't come in etc. but when it came to it, unless the place was packed out, there was always space for family members to perch, - so don't despair, it might be possible
Tips - I'll try to think about it over the next few days, but off the top of my head: something to eat (they'll probably offer you something, -it's likely to be yuk) if you like special tea something, take the bag in - they'll usually make it for you. Snacks to nibble - I used to take a little lunch box with dried fruit, nuts, cherry toms, fruit, oatcakes etc. - not rich stuff, but nibbles.
They will explain everything as they dose you with it, and will constantly check on you. Time spent is them putting the drugs into you with big syringes through your cannula, then a long time is spent flushing it through.
So books, magazines, puzzle books whatever you enjoy (bear in mind you'll only have one free hand though! - so not knitting!)
An i-pod/mp3 with songs you like or audio books on it helps pass the time, and also blocks out the sound of other people - you may not feel like making conversation, or hearing others discuss their side effects etc. with the nurses.
Comfortable clothes - something warm to put round your shoulders without sleeves, so a shawl/poncho or just a small fleece blanket - so you can take it on or off - it can be cold or hot in there.
I used to wear warm gloves and wrist warmers in the car on the way and in the waiting room - makes it easier to find a vein if your hands are warm.
I'll keep thinking, - but you will quickly discover what works for you and keeps you comfortable, and will be able to put your own chemo kit bag together
Good luck to you for Monday too OneinEight - I'm glad you and Ned are running almost parallel as it were - its a great support to be able to chat to someone who's actually going through it at the same time, and compare notes