In reply to the canal question....i regularly fish the Grand Union at the London end and find that the turning areas near marinas and in town are the best bet.Generally for a better stamp of fish you need to be hooking into bream and skimmers.The stretch i fish the roach don't really go over the pound mark (if your lucky !?). The good part about turning bays, especially ones near to locks is that the shoals of bream will then turn back on themselves to go the opposite way back up the canal if you get the bait out there waiting for them you can have really good results.Usually feeding up the smaller fish will bring the bigger ones in to investigate.Getting the right amount of bait out there and the right bait is the key....bream are renown for liking cocktail baits so its always worth a try.
Ground bait is a good bet as is crumbed bread and maggots will always score (i prefer red)as will sweetcorn.A good way to feed maggots is to kill some by freezing some overnight and add them to the groundbait, that way they don't move off the baited area !!
Obvoiusly each canal differs and some contain a good head of carp and tench if this is the case you may want to step up the tackle a wee bit...
I don't own a pole either and prefer to use a match rod (13-15 ft) set up with an insert waggler (a waggler with enought shot to reach the far bank) with 3-5lb mainline with a 2lb hooklength (Daiwa monofil is good).As a rough rule the fish tend to stay out at the far bank but it is always usefull to feed an area to the left or right in the margin.Now its warming up early mornings and evenings are best for the bream / skimmers when the boat traffic has calmed down.
A good tip is to chat with angler's and find out what has been caught, when and what baits are working best.
best of luck, the canal can be a bit hit and miss.
i hope its a hit, a good day at the cut can be very rewarding !
John